Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts. 2022/05/26 15:33:07 parsed 1 programs [ 37.641144][ T23] audit: type=1400 audit(1653579187.720:148): avc: denied { mounton } for pid=401 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 [ 37.665585][ T401] cgroup: Unknown subsys name 'net' [ 37.671208][ T401] cgroup: Unknown subsys name 'devices' [ 37.677711][ T401] cgroup: Unknown subsys name 'hugetlb' [ 37.683343][ T401] cgroup: Unknown subsys name 'rlimit' 2022/05/26 15:33:07 executed programs: 0 [ 37.689705][ T23] audit: type=1400 audit(1653579187.770:149): avc: denied { mounton } for pid=401 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 [ 37.714686][ T23] audit: type=1400 audit(1653579187.770:150): avc: denied { mount } for pid=401 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 [ 37.738091][ T23] audit: type=1400 audit(1653579187.770:151): 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 [ 37.740104][ T405] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.762771][ T23] audit: type=1400 audit(1653579187.770:152): 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 [ 37.770203][ T405] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.799731][ T405] device bridge_slave_0 entered promiscuous mode [ 37.806548][ T405] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.814277][ T405] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.821724][ T405] device bridge_slave_1 entered promiscuous mode [ 37.845544][ T405] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.852710][ T405] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.860074][ T405] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.867104][ T405] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.881737][ T382] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.889281][ T382] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.896808][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 37.904137][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.913039][ T108] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.921160][ T108] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.928456][ T108] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.947275][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.955497][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.963492][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.971694][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.980197][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.987600][ T382] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.995660][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.004094][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.014252][ T108] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.026760][ T108] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.037478][ T23] audit: type=1400 audit(1653579188.110:153): 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 [ 38.061474][ T23] audit: type=1400 audit(1653579188.120:154): avc: denied { ioctl } for pid=409 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 [ 38.107580][ T413] FAULT_INJECTION: forcing a failure. [ 38.107580][ T413] name failslab, interval 1, probability 0, space 0, times 1 [ 38.120413][ T413] CPU: 1 PID: 413 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 38.131199][ T413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.141956][ T413] Call Trace: [ 38.145257][ T413] dump_stack_lvl+0x1e2/0x24b [ 38.149939][ T413] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.155393][ T413] dump_stack+0x15/0x17 [ 38.159541][ T413] should_fail+0x3c0/0x510 [ 38.163958][ T413] ? __kernfs_new_node+0x99/0x6e0 [ 38.168965][ T413] __should_failslab+0x9f/0xe0 [ 38.173818][ T413] should_failslab+0x9/0x20 [ 38.178483][ T413] __kmalloc_track_caller+0x5f/0x350 [ 38.183862][ T413] ? __kernel_text_address+0x9a/0x110 [ 38.189221][ T413] ? unwind_get_return_address+0x4c/0x90 [ 38.194830][ T413] kstrdup_const+0x55/0x90 [ 38.199220][ T413] __kernfs_new_node+0x99/0x6e0 [ 38.204053][ T413] ? stack_trace_save+0x12d/0x1f0 [ 38.209054][ T413] ? kernfs_new_node+0x170/0x170 [ 38.213964][ T413] ? stack_trace_snprint+0x100/0x100 [ 38.219227][ T413] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 38.225009][ T413] ? stack_depot_save+0x433/0x4a0 [ 38.230009][ T413] ? device_add+0xbe/0xbd0 [ 38.234400][ T413] kernfs_create_dir_ns+0x9b/0x230 [ 38.239488][ T413] sysfs_create_dir_ns+0x181/0x390 [ 38.244576][ T413] ? sysfs_warn_dup+0xa0/0xa0 [ 38.249238][ T413] kobject_add_internal+0x766/0xda0 [ 38.254408][ T413] kobject_add+0x14c/0x210 [ 38.258797][ T413] ? _raw_spin_lock+0xa3/0x1b0 [ 38.263535][ T413] ? kobject_init+0x1e0/0x1e0 [ 38.268213][ T413] ? __kasan_check_write+0x14/0x20 [ 38.273646][ T413] ? mutex_unlock+0x1d/0x40 [ 38.278181][ T413] ? get_device_parent+0x2c5/0x430 [ 38.283267][ T413] device_add+0x3ca/0xbd0 [ 38.287666][ T413] __device_add_disk+0x7c1/0x11b0 [ 38.292665][ T413] ? device_add_disk+0x40/0x40 [ 38.297592][ T413] ? vsprintf+0x40/0x40 [ 38.302950][ T413] device_add_disk+0x2a/0x40 [ 38.307608][ T413] loop_add+0x554/0x7b0 [ 38.311741][ T413] loop_control_ioctl+0x564/0x740 [ 38.317348][ T413] ? loop_remove+0xb0/0xb0 [ 38.321741][ T413] ? __fget_files+0x310/0x370 [ 38.326479][ T413] ? security_file_ioctl+0xb1/0xd0 [ 38.331561][ T413] ? loop_remove+0xb0/0xb0 [ 38.335967][ T413] __se_sys_ioctl+0x115/0x190 [ 38.340620][ T413] __x64_sys_ioctl+0x7b/0x90 [ 38.345187][ T413] do_syscall_64+0x34/0x70 [ 38.349591][ T413] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.355457][ T413] RIP: 0033:0x7f144797e0e9 [ 38.359852][ 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 [ 38.379431][ T413] RSP: 002b:00007f14478d3168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.387818][ T413] RAX: ffffffffffffffda RBX: 00007f1447a91030 RCX: 00007f144797e0e9 [ 38.395765][ T413] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.403710][ T413] RBP: 00007f14478d31d0 R08: 0000000000000000 R09: 0000000000000000 [ 38.411659][ T413] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 38.419608][ T413] R13: 00007ffd00a6533f R14: 00007f14478d3300 R15: 0000000000022000 [ 38.428808][ T413] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 38.442622][ T415] FAULT_INJECTION: forcing a failure. [ 38.442622][ T415] name failslab, interval 1, probability 0, space 0, times 0 [ 38.455484][ T415] CPU: 1 PID: 415 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 38.466222][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.476368][ T415] Call Trace: [ 38.479737][ T415] dump_stack_lvl+0x1e2/0x24b [ 38.484404][ T415] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.489840][ T415] dump_stack+0x15/0x17 [ 38.493971][ T415] should_fail+0x3c0/0x510 [ 38.498369][ T415] ? __kernfs_new_node+0x99/0x6e0 [ 38.503460][ T415] __should_failslab+0x9f/0xe0 [ 38.508221][ T415] should_failslab+0x9/0x20 [ 38.512708][ T415] __kmalloc_track_caller+0x5f/0x350 [ 38.518086][ T415] ? __kernel_text_address+0x9a/0x110 [ 38.523432][ T415] ? unwind_get_return_address+0x4c/0x90 [ 38.529044][ T415] kstrdup_const+0x55/0x90 [ 38.533435][ T415] __kernfs_new_node+0x99/0x6e0 [ 38.538266][ T415] ? stack_trace_save+0x12d/0x1f0 [ 38.543356][ T415] ? kernfs_new_node+0x170/0x170 [ 38.548266][ T415] ? stack_trace_snprint+0x100/0x100 [ 38.553632][ T415] ? dput+0x2ce/0x320 [ 38.557637][ T415] ? device_add+0xbe/0xbd0 [ 38.562068][ T415] kernfs_create_dir_ns+0x9b/0x230 [ 38.567167][ T415] sysfs_create_dir_ns+0x181/0x390 [ 38.572263][ T415] ? sysfs_warn_dup+0xa0/0xa0 [ 38.576914][ T415] kobject_add_internal+0x766/0xda0 [ 38.582128][ T415] kobject_add+0x14c/0x210 [ 38.586520][ T415] ? _raw_spin_lock+0xa3/0x1b0 [ 38.591270][ T415] ? kobject_init+0x1e0/0x1e0 [ 38.595955][ T415] ? __kasan_check_write+0x14/0x20 [ 38.601038][ T415] ? mutex_unlock+0x1d/0x40 [ 38.605510][ T415] ? get_device_parent+0x2c5/0x430 [ 38.610765][ T415] device_add+0x3ca/0xbd0 [ 38.615073][ T415] __device_add_disk+0x7c1/0x11b0 [ 38.620071][ T415] ? device_add_disk+0x40/0x40 [ 38.624831][ T415] ? vsprintf+0x40/0x40 [ 38.628960][ T415] device_add_disk+0x2a/0x40 [ 38.633523][ T415] loop_add+0x554/0x7b0 [ 38.637679][ T415] loop_control_ioctl+0x564/0x740 [ 38.642684][ T415] ? loop_remove+0xb0/0xb0 [ 38.647195][ T415] ? __fget_files+0x310/0x370 [ 38.651844][ T415] ? security_file_ioctl+0xb1/0xd0 [ 38.657103][ T415] ? loop_remove+0xb0/0xb0 [ 38.661490][ T415] __se_sys_ioctl+0x115/0x190 [ 38.666155][ T415] __x64_sys_ioctl+0x7b/0x90 [ 38.670722][ T415] do_syscall_64+0x34/0x70 [ 38.675287][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.681151][ T415] RIP: 0033:0x7f144797e0e9 [ 38.685543][ 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 [ 38.705383][ T415] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.713873][ T415] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 38.722002][ T415] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.729946][ T415] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 38.738329][ T415] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 38.746284][ T415] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 38.756247][ T415] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 38.770543][ T417] FAULT_INJECTION: forcing a failure. [ 38.770543][ T417] name failslab, interval 1, probability 0, space 0, times 0 [ 38.783422][ T417] CPU: 0 PID: 417 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 38.794154][ T417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.804570][ T417] Call Trace: [ 38.807844][ T417] dump_stack_lvl+0x1e2/0x24b [ 38.812520][ T417] ? panic+0x7d7/0x7d7 [ 38.816561][ T417] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.822096][ T417] ? __kasan_kmalloc+0x9/0x10 [ 38.826759][ T417] ? kobj_map+0x72/0x6f0 [ 38.831080][ T417] ? __device_add_disk+0x6e0/0x11b0 [ 38.836468][ T417] ? device_add_disk+0x2a/0x40 [ 38.841732][ T417] ? loop_control_ioctl+0x564/0x740 [ 38.847017][ T417] ? __se_sys_ioctl+0x115/0x190 [ 38.851847][ T417] ? __x64_sys_ioctl+0x7b/0x90 [ 38.856611][ T417] dump_stack+0x15/0x17 [ 38.860758][ T417] should_fail+0x3c0/0x510 [ 38.865152][ T417] ? kvasprintf_const+0x139/0x180 [ 38.870165][ T417] __should_failslab+0x9f/0xe0 [ 38.874987][ T417] should_failslab+0x9/0x20 [ 38.879467][ T417] __kmalloc_track_caller+0x5f/0x350 [ 38.884730][ T417] kstrdup_const+0x55/0x90 [ 38.889208][ T417] kvasprintf_const+0x139/0x180 [ 38.894032][ T417] kobject_set_name_vargs+0x61/0x120 [ 38.899296][ T417] dev_set_name+0xd1/0x120 [ 38.903684][ T417] ? __kmalloc+0x1f7/0x360 [ 38.908099][ T417] ? get_device+0x30/0x30 [ 38.912410][ T417] ? kobj_map+0x6ad/0x6f0 [ 38.916739][ T417] __device_add_disk+0x733/0x11b0 [ 38.921754][ T417] ? device_add_disk+0x40/0x40 [ 38.926514][ T417] ? vsprintf+0x40/0x40 [ 38.930659][ T417] device_add_disk+0x2a/0x40 [ 38.935332][ T417] loop_add+0x554/0x7b0 [ 38.939729][ T417] loop_control_ioctl+0x564/0x740 [ 38.944760][ T417] ? loop_remove+0xb0/0xb0 [ 38.949351][ T417] ? __fget_files+0x310/0x370 [ 38.954009][ T417] ? security_file_ioctl+0xb1/0xd0 [ 38.959111][ T417] ? loop_remove+0xb0/0xb0 [ 38.963518][ T417] __se_sys_ioctl+0x115/0x190 [ 38.968206][ T417] __x64_sys_ioctl+0x7b/0x90 [ 38.972865][ T417] do_syscall_64+0x34/0x70 [ 38.977255][ T417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.983118][ T417] RIP: 0033:0x7f144797e0e9 [ 38.987596][ 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 [ 39.007182][ T417] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.015570][ T417] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 39.023537][ T417] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.031589][ T417] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.039561][ T417] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.047604][ T417] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 39.057686][ T23] audit: type=1400 audit(1653579189.140:155): 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 [ 39.064928][ T419] FAULT_INJECTION: forcing a failure. [ 39.064928][ T419] name failslab, interval 1, probability 0, space 0, times 0 [ 39.093690][ T419] CPU: 1 PID: 419 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 39.104451][ T419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.114492][ T419] Call Trace: [ 39.117777][ T419] dump_stack_lvl+0x1e2/0x24b [ 39.122515][ T419] ? panic+0x7d7/0x7d7 [ 39.126646][ T419] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.132220][ T419] dump_stack+0x15/0x17 [ 39.136360][ T419] should_fail+0x3c0/0x510 [ 39.140759][ T419] __should_failslab+0x9f/0xe0 [ 39.145502][ T419] should_failslab+0x9/0x20 [ 39.149982][ T419] kmem_cache_alloc+0x3f/0x300 [ 39.154722][ T419] ? __kernfs_new_node+0xdb/0x6e0 [ 39.159717][ T419] __kernfs_new_node+0xdb/0x6e0 [ 39.164557][ T419] ? stack_trace_save+0x12d/0x1f0 [ 39.169564][ T419] ? kernfs_new_node+0x170/0x170 [ 39.174491][ T419] ? stack_trace_snprint+0x100/0x100 [ 39.179764][ T419] ? dput+0x2ce/0x320 [ 39.183732][ T419] ? device_add+0xbe/0xbd0 [ 39.188236][ T419] kernfs_create_dir_ns+0x9b/0x230 [ 39.193443][ T419] sysfs_create_dir_ns+0x181/0x390 [ 39.198556][ T419] ? sysfs_warn_dup+0xa0/0xa0 [ 39.203220][ T419] kobject_add_internal+0x766/0xda0 [ 39.208393][ T419] kobject_add+0x14c/0x210 [ 39.212783][ T419] ? _raw_spin_lock+0xa3/0x1b0 [ 39.217531][ T419] ? kobject_init+0x1e0/0x1e0 [ 39.222192][ T419] ? __kasan_check_write+0x14/0x20 [ 39.227364][ T419] ? mutex_unlock+0x1d/0x40 [ 39.231841][ T419] ? get_device_parent+0x2c5/0x430 [ 39.236926][ T419] device_add+0x3ca/0xbd0 [ 39.241229][ T419] __device_add_disk+0x7c1/0x11b0 [ 39.246227][ T419] ? device_add_disk+0x40/0x40 [ 39.250986][ T419] ? vsprintf+0x40/0x40 [ 39.255118][ T419] device_add_disk+0x2a/0x40 [ 39.259683][ T419] loop_add+0x554/0x7b0 [ 39.263817][ T419] loop_control_ioctl+0x564/0x740 [ 39.268817][ T419] ? loop_remove+0xb0/0xb0 [ 39.273292][ T419] ? __fget_files+0x310/0x370 [ 39.277946][ T419] ? security_file_ioctl+0xb1/0xd0 [ 39.283041][ T419] ? loop_remove+0xb0/0xb0 [ 39.287517][ T419] __se_sys_ioctl+0x115/0x190 [ 39.292169][ T419] __x64_sys_ioctl+0x7b/0x90 [ 39.296742][ T419] do_syscall_64+0x34/0x70 [ 39.301134][ T419] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.307092][ T419] RIP: 0033:0x7f144797e0e9 [ 39.311481][ 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 [ 39.331508][ T419] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.340337][ T419] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 39.348299][ T419] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.356343][ T419] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.364287][ T419] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.372237][ T419] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 39.380662][ T23] audit: type=1400 audit(1653579189.140:156): 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 [ 39.403133][ T23] audit: type=1400 audit(1653579189.140:157): 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 [ 39.403196][ T419] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 39.440158][ T421] FAULT_INJECTION: forcing a failure. [ 39.440158][ T421] name failslab, interval 1, probability 0, space 0, times 0 [ 39.452958][ T421] CPU: 1 PID: 421 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 39.463800][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.474124][ T421] Call Trace: [ 39.477530][ T421] dump_stack_lvl+0x1e2/0x24b [ 39.482249][ T421] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.487695][ T421] dump_stack+0x15/0x17 [ 39.491943][ T421] should_fail+0x3c0/0x510 [ 39.496426][ T421] ? __kernfs_new_node+0x99/0x6e0 [ 39.501460][ T421] __should_failslab+0x9f/0xe0 [ 39.506341][ T421] should_failslab+0x9/0x20 [ 39.510843][ T421] __kmalloc_track_caller+0x5f/0x350 [ 39.516664][ T421] ? __kernel_text_address+0x9a/0x110 [ 39.522029][ T421] ? unwind_get_return_address+0x4c/0x90 [ 39.527829][ T421] kstrdup_const+0x55/0x90 [ 39.532343][ T421] __kernfs_new_node+0x99/0x6e0 [ 39.537540][ T421] ? stack_trace_save+0x12d/0x1f0 [ 39.542779][ T421] ? kernfs_new_node+0x170/0x170 [ 39.547824][ T421] ? stack_trace_snprint+0x100/0x100 [ 39.553407][ T421] ? dput+0x2ce/0x320 [ 39.557374][ T421] ? device_add+0xbe/0xbd0 [ 39.561804][ T421] kernfs_create_dir_ns+0x9b/0x230 [ 39.566904][ T421] sysfs_create_dir_ns+0x181/0x390 [ 39.572351][ T421] ? sysfs_warn_dup+0xa0/0xa0 [ 39.577346][ T421] kobject_add_internal+0x766/0xda0 [ 39.582642][ T421] kobject_add+0x14c/0x210 [ 39.587060][ T421] ? _raw_spin_lock+0xa3/0x1b0 [ 39.591819][ T421] ? kobject_init+0x1e0/0x1e0 [ 39.596479][ T421] ? __kasan_check_write+0x14/0x20 [ 39.601685][ T421] ? mutex_unlock+0x1d/0x40 [ 39.606337][ T421] ? get_device_parent+0x2c5/0x430 [ 39.611463][ T421] device_add+0x3ca/0xbd0 [ 39.615775][ T421] __device_add_disk+0x7c1/0x11b0 [ 39.620990][ T421] ? device_add_disk+0x40/0x40 [ 39.625876][ T421] ? vsprintf+0x40/0x40 [ 39.630114][ T421] device_add_disk+0x2a/0x40 [ 39.634808][ T421] loop_add+0x554/0x7b0 [ 39.639057][ T421] loop_control_ioctl+0x564/0x740 [ 39.644583][ T421] ? loop_remove+0xb0/0xb0 [ 39.649251][ T421] ? __fget_files+0x310/0x370 [ 39.653912][ T421] ? security_file_ioctl+0xb1/0xd0 [ 39.659028][ T421] ? loop_remove+0xb0/0xb0 [ 39.663531][ T421] __se_sys_ioctl+0x115/0x190 [ 39.668275][ T421] __x64_sys_ioctl+0x7b/0x90 [ 39.673045][ T421] do_syscall_64+0x34/0x70 [ 39.677449][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.683432][ T421] RIP: 0033:0x7f144797e0e9 [ 39.687827][ 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 [ 39.708570][ T421] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.716966][ T421] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 39.724941][ T421] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.733582][ T421] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.741664][ T421] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.749635][ T421] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 39.759301][ T421] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 39.772990][ T423] FAULT_INJECTION: forcing a failure. [ 39.772990][ T423] name failslab, interval 1, probability 0, space 0, times 0 [ 39.786012][ T423] CPU: 1 PID: 423 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 39.796765][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.806972][ T423] Call Trace: [ 39.810241][ T423] dump_stack_lvl+0x1e2/0x24b [ 39.814986][ T423] ? panic+0x7d7/0x7d7 [ 39.819218][ T423] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.824803][ T423] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 39.829817][ T423] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 39.835188][ T423] dump_stack+0x15/0x17 [ 39.839597][ T423] should_fail+0x3c0/0x510 [ 39.844131][ T423] ? kobj_map+0x72/0x6f0 [ 39.848366][ T423] __should_failslab+0x9f/0xe0 [ 39.853115][ T423] should_failslab+0x9/0x20 [ 39.857713][ T423] __kmalloc+0x60/0x360 [ 39.861903][ T423] ? __device_add_disk+0x585/0x11b0 [ 39.867223][ T423] kobj_map+0x72/0x6f0 [ 39.871386][ T423] ? exact_match+0x20/0x20 [ 39.875777][ T423] ? bdev_check_media_change+0x4c0/0x4c0 [ 39.881516][ T423] __device_add_disk+0x6e0/0x11b0 [ 39.886633][ T423] ? device_add_disk+0x40/0x40 [ 39.891406][ T423] ? vsprintf+0x40/0x40 [ 39.895538][ T423] device_add_disk+0x2a/0x40 [ 39.900105][ T423] loop_add+0x554/0x7b0 [ 39.904418][ T423] loop_control_ioctl+0x564/0x740 [ 39.909416][ T423] ? loop_remove+0xb0/0xb0 [ 39.913813][ T423] ? __fget_files+0x310/0x370 [ 39.918472][ T423] ? security_file_ioctl+0xb1/0xd0 [ 39.923560][ T423] ? loop_remove+0xb0/0xb0 [ 39.927952][ T423] __se_sys_ioctl+0x115/0x190 [ 39.932607][ T423] __x64_sys_ioctl+0x7b/0x90 [ 39.937174][ T423] do_syscall_64+0x34/0x70 [ 39.941566][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.947436][ T423] RIP: 0033:0x7f144797e0e9 [ 39.951828][ T423] 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 [ 39.971620][ T423] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.980099][ T423] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 39.988080][ T423] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.996144][ T423] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 40.004093][ T423] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 40.012042][ T423] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 40.023880][ T411] ================================================================== [ 40.032091][ T411] BUG: KASAN: use-after-free in lo_open+0x93/0xc0 [ 40.038487][ T411] Write of size 4 at addr ffff88810e41c004 by task udevd/411 [ 40.046050][ T411] [ 40.048511][ T411] CPU: 0 PID: 411 Comm: udevd Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 40.058806][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.068840][ T411] Call Trace: [ 40.072107][ T411] dump_stack_lvl+0x1e2/0x24b [ 40.076759][ T411] ? bfq_pos_tree_add_move+0x43e/0x43e [ 40.082343][ T411] ? panic+0x7d7/0x7d7 [ 40.086427][ T411] ? mutex_lock+0xa6/0x110 [ 40.090822][ T411] print_address_description+0x81/0x3c0 [ 40.096343][ T411] kasan_report+0x1a4/0x1f0 [ 40.100911][ T411] ? lo_open+0x93/0xc0 [ 40.104982][ T411] ? lo_open+0x93/0xc0 [ 40.109119][ T411] kasan_check_range+0x2aa/0x2e0 [ 40.114048][ T411] __kasan_check_write+0x14/0x20 [ 40.119055][ T411] lo_open+0x93/0xc0 [ 40.123051][ T411] __blkdev_get+0x599/0x1360 [ 40.127656][ T411] ? bdev_test+0xa0/0xa0 [ 40.131876][ T411] ? blkdev_bio_end_io+0x470/0x470 [ 40.137143][ T411] ? selinux_file_receive+0x140/0x140 [ 40.142500][ T411] blkdev_open+0x21a/0x450 [ 40.147070][ T411] ? block_ioctl+0xf0/0xf0 [ 40.151514][ T411] do_dentry_open+0x7a2/0x1090 [ 40.156284][ T411] vfs_open+0x73/0x80 [ 40.160340][ T411] path_openat+0x2638/0x2fd0 [ 40.165285][ T411] ? __kasan_slab_alloc+0xb2/0xe0 [ 40.170378][ T411] ? do_filp_open+0x440/0x440 [ 40.175028][ T411] do_filp_open+0x200/0x440 [ 40.179512][ T411] ? vfs_tmpfile+0x230/0x230 [ 40.184255][ T411] ? get_unused_fd_flags+0x95/0xa0 [ 40.189339][ T411] do_sys_openat2+0x13b/0x470 [ 40.194021][ T411] ? do_sys_open+0x220/0x220 [ 40.198587][ T411] ? __fdget_pos+0x1fe/0x310 [ 40.203232][ T411] __x64_sys_openat+0x243/0x290 [ 40.208052][ T411] ? __ia32_sys_open+0x270/0x270 [ 40.213092][ T411] ? debug_smp_processor_id+0x17/0x20 [ 40.218444][ T411] do_syscall_64+0x34/0x70 [ 40.222930][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.228809][ T411] RIP: 0033:0x7f07efacb697 [ 40.233198][ T411] 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 [ 40.252859][ T411] RSP: 002b:00007ffc3f192300 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 40.261244][ T411] RAX: ffffffffffffffda RBX: 00005602287fee30 RCX: 00007f07efacb697 [ 40.269274][ T411] RDX: 00000000000a0800 RSI: 00005602287d5670 RDI: 00000000ffffff9c [ 40.277565][ T411] RBP: 00005602287d5670 R08: 00000000ffffffff R09: 00007ffc3f19b0b8 [ 40.285604][ T411] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 40.293544][ T411] R13: 00005602287d7b00 R14: 0000000000000001 R15: 00005602287c92c0 [ 40.301836][ T411] [ 40.304139][ T411] Allocated by task 421: [ 40.308356][ T411] ____kasan_kmalloc+0xdc/0x110 [ 40.313177][ T411] __kasan_kmalloc+0x9/0x10 [ 40.317652][ T411] kmem_cache_alloc_trace+0x1dd/0x330 [ 40.322995][ T411] loop_add+0x5a/0x7b0 [ 40.327035][ T411] loop_control_ioctl+0x564/0x740 [ 40.332059][ T411] __se_sys_ioctl+0x115/0x190 [ 40.338018][ T411] __x64_sys_ioctl+0x7b/0x90 [ 40.342695][ T411] do_syscall_64+0x34/0x70 [ 40.347364][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.353235][ T411] [ 40.355539][ T411] Freed by task 421: [ 40.359420][ T411] kasan_set_track+0x4c/0x80 [ 40.363979][ T411] kasan_set_free_info+0x23/0x40 [ 40.368979][ T411] ____kasan_slab_free+0x121/0x160 [ 40.374070][ T411] __kasan_slab_free+0x11/0x20 [ 40.378808][ T411] slab_free_freelist_hook+0xcc/0x1a0 [ 40.384149][ T411] kfree+0xc3/0x290 [ 40.387925][ T411] loop_add+0x5af/0x7b0 [ 40.392054][ T411] loop_control_ioctl+0x564/0x740 [ 40.397048][ T411] __se_sys_ioctl+0x115/0x190 [ 40.401702][ T411] __x64_sys_ioctl+0x7b/0x90 [ 40.406264][ T411] do_syscall_64+0x34/0x70 [ 40.410680][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.416631][ T411] [ 40.419006][ T411] The buggy address belongs to the object at ffff88810e41c000 [ 40.419006][ T411] which belongs to the cache kmalloc-1k of size 1024 [ 40.433134][ T411] The buggy address is located 4 bytes inside of [ 40.433134][ T411] 1024-byte region [ffff88810e41c000, ffff88810e41c400) [ 40.447248][ T411] The buggy address belongs to the page: [ 40.452868][ T411] page:ffffea0004390600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10e418 [ 40.463071][ T411] head:ffffea0004390600 order:3 compound_mapcount:0 compound_pincount:0 [ 40.471369][ T411] flags: 0x8000000000010200(slab|head) [ 40.476847][ T411] raw: 8000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 40.485400][ T411] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 40.493948][ T411] page dumped because: kasan: bad access detected [ 40.500330][ T411] page_owner tracks the page as allocated [ 40.506022][ T411] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 24, ts 39093316016, free_ts 39057416619 [ 40.526049][ T411] get_page_from_freelist+0x745/0x760 [ 40.531393][ T411] __alloc_pages_nodemask+0x3b6/0x890 [ 40.536744][ T411] allocate_slab+0x78/0x540 [ 40.541216][ T411] ___slab_alloc+0x131/0x2e0 [ 40.545774][ T411] __slab_alloc+0x63/0xa0 [ 40.550075][ T411] __kmalloc_track_caller+0x23e/0x350 [ 40.555417][ T411] __alloc_skb+0xbe/0x580 [ 40.559728][ T411] ndisc_alloc_skb+0xf0/0x2d0 [ 40.564377][ T411] ndisc_send_rs+0x269/0x680 [ 40.568940][ T411] addrconf_dad_completed+0x8fe/0xdd0 [ 40.574288][ T411] addrconf_dad_work+0xd72/0x15d0 [ 40.579281][ T411] process_one_work+0x726/0xc10 [ 40.584098][ T411] worker_thread+0xb27/0x1550 [ 40.588752][ T411] kthread+0x349/0x3d0 [ 40.592804][ T411] ret_from_fork+0x1f/0x30 [ 40.597193][ T411] page last free stack trace: [ 40.601851][ T411] __free_pages_ok+0x7f8/0x830 [ 40.606589][ T411] __free_pages+0x2d2/0x4c0 [ 40.611061][ T411] __free_slab+0xd3/0x190 [ 40.615356][ T411] unfreeze_partials+0x17d/0x1b0 [ 40.620261][ T411] put_cpu_partial+0xc8/0x190 [ 40.625216][ T411] __slab_free+0x2d8/0x3a0 [ 40.629682][ T411] ___cache_free+0x11f/0x140 [ 40.634253][ T411] qlink_free+0x38/0x40 [ 40.638504][ T411] qlist_free_all+0x4c/0xc0 [ 40.642982][ T411] kasan_quarantine_reduce+0x15a/0x170 [ 40.648427][ T411] __kasan_slab_alloc+0x2f/0xe0 [ 40.653268][ T411] kmem_cache_alloc+0x16c/0x300 [ 40.658114][ T411] getname_flags+0xba/0x510 [ 40.662636][ T411] getname+0x19/0x20 [ 40.666504][ T411] do_sys_openat2+0xd2/0x470 [ 40.671121][ T411] __x64_sys_openat+0x243/0x290 [ 40.675952][ T411] [ 40.678251][ T411] Memory state around the buggy address: [ 40.683853][ T411] ffff88810e41bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 40.692148][ T411] ffff88810e41bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 40.700199][ T411] >ffff88810e41c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.708404][ T411] ^ [ 40.712452][ T411] ffff88810e41c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.720518][ T411] ffff88810e41c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.728675][ T411] ================================================================== [ 40.736726][ T411] Disabling lock debugging due to kernel taint [ 40.744265][ T411] ------------[ cut here ]------------ [ 40.750910][ T411] refcount_t: addition on 0; use-after-free. [ 40.757028][ T411] WARNING: CPU: 0 PID: 411 at lib/refcount.c:25 refcount_warn_saturate+0x147/0x1b0 [ 40.766330][ T411] Modules linked in: [ 40.770220][ T411] CPU: 0 PID: 411 Comm: udevd Tainted: G B 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 40.782165][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.792240][ T411] RIP: 0010:refcount_warn_saturate+0x147/0x1b0 [ 40.798448][ T411] Code: c7 a0 bf 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 c0 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 c0 43 [ 40.818247][ T411] RSP: 0018:ffffc90000ce7670 EFLAGS: 00010246 [ 40.824289][ T411] RAX: 8fcc05fe89a2a200 RBX: 0000000000000002 RCX: ffff88810c97bb40 [ 40.832626][ T411] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 40.840824][ T411] RBP: ffffc90000ce7680 R08: ffffffff8153a998 R09: ffffed103ee4a5d8 [ 40.849378][ T411] R10: ffffed103ee4a5d8 R11: 1ffff1103ee4a5d7 R12: dffffc0000000000 [ 40.857604][ T411] R13: ffff88810e434000 R14: 0000000000000002 R15: ffff88810e434000 [ 40.865934][ T411] FS: 00007f07ef974840(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 40.874969][ T411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.882274][ T411] CR2: 00007f14478f3ff8 CR3: 000000010d6e3000 CR4: 00000000003506a0 [ 40.890373][ T411] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.898445][ T411] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.907014][ T411] Call Trace: [ 40.910297][ T411] bdi_get+0x83/0x90 [ 40.914166][ T411] __blkdev_get+0x120c/0x1360 [ 40.918930][ T411] ? bdev_test+0xa0/0xa0 [ 40.923253][ T411] ? blkdev_bio_end_io+0x470/0x470 [ 40.928402][ T411] ? selinux_file_receive+0x140/0x140 [ 40.933768][ T411] blkdev_open+0x21a/0x450 [ 40.938228][ T411] ? block_ioctl+0xf0/0xf0 [ 40.942883][ T411] do_dentry_open+0x7a2/0x1090 [ 40.947743][ T411] vfs_open+0x73/0x80 [ 40.951753][ T411] path_openat+0x2638/0x2fd0 [ 40.956626][ T411] ? __kasan_slab_alloc+0xb2/0xe0 [ 40.961650][ T411] ? do_filp_open+0x440/0x440 [ 40.966345][ T411] do_filp_open+0x200/0x440 [ 40.970864][ T411] ? vfs_tmpfile+0x230/0x230 [ 40.975518][ T411] ? get_unused_fd_flags+0x95/0xa0 [ 40.980641][ T411] do_sys_openat2+0x13b/0x470 [ 40.985300][ T411] ? do_sys_open+0x220/0x220 [ 40.989892][ T411] ? __fdget_pos+0x1fe/0x310 [ 40.994480][ T411] __x64_sys_openat+0x243/0x290 [ 40.999346][ T411] ? __ia32_sys_open+0x270/0x270 [ 41.004277][ T411] ? debug_smp_processor_id+0x17/0x20 [ 41.009753][ T411] do_syscall_64+0x34/0x70 [ 41.014156][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.020056][ T411] RIP: 0033:0x7f07efacb697 [ 41.024631][ T411] 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 [ 41.044342][ T411] RSP: 002b:00007ffc3f192300 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 41.052791][ T411] RAX: ffffffffffffffda RBX: 00005602287fee30 RCX: 00007f07efacb697 [ 41.060890][ T411] RDX: 00000000000a0800 RSI: 00005602287d5670 RDI: 00000000ffffff9c [ 41.069874][ T411] RBP: 00005602287d5670 R08: 00000000ffffffff R09: 00007ffc3f19b0b8 [ 41.080900][ T411] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 41.089036][ T411] R13: 00005602287d7b00 R14: 0000000000000001 R15: 00005602287c92c0 [ 41.097039][ T411] ---[ end trace 100c67114ae8d3b3 ]--- [ 41.106220][ T21] ------------[ cut here ]------------ [ 41.111912][ T21] refcount_t: underflow; use-after-free. [ 41.117809][ T21] WARNING: CPU: 0 PID: 21 at lib/refcount.c:28 refcount_warn_saturate+0x165/0x1b0 [ 41.127275][ T21] Modules linked in: [ 41.131172][ T21] CPU: 0 PID: 21 Comm: kdevtmpfs Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 41.144287][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.154869][ T21] RIP: 0010:refcount_warn_saturate+0x165/0x1b0 [ 41.161381][ T21] Code: c7 20 c0 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 c0 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 [ 41.181744][ T21] RSP: 0018:ffffc9000016f890 EFLAGS: 00010246 [ 41.187996][ T21] RAX: 62c902d19f6c5b00 RBX: 0000000000000003 RCX: ffff8881002d3b40 [ 41.196135][ T21] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 41.204226][ T21] RBP: ffffc9000016f8a0 R08: ffffffff8153a998 R09: ffffed103ee4a5d8 [ 41.212314][ T21] R10: ffffed103ee4a5d8 R11: 1ffff1103ee4a5d7 R12: dffffc0000000000 [ 41.220666][ T21] R13: 1ffff11021bd3482 R14: 0000000000000003 R15: ffff88810e434040 [ 41.228745][ T21] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 41.238133][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.245521][ T21] CR2: 00007f14478d3718 CR3: 000000010c6eb000 CR4: 00000000003506b0 [ 41.253641][ T21] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.262001][ T21] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.270172][ T21] Call Trace: [ 41.273915][ T21] bdi_put+0x114/0x120 [ 41.278233][ T21] bdev_evict_inode+0x1a8/0x2b0 [ 41.283108][ T21] ? _raw_spin_trylock_bh+0x1d0/0x1d0 [ 41.288708][ T21] ? bdev_free_inode+0x30/0x30 [ 41.293487][ T21] evict+0x2a3/0x6c0 [ 41.297522][ T21] iput+0x61f/0x7d0 [ 41.301348][ T21] bd_forget+0xff/0x110 [ 41.305613][ T21] evict+0x31f/0x6c0 [ 41.309670][ T21] iput+0x61f/0x7d0 [ 41.313665][ T21] d_delete_notify+0xad/0xd0 [ 41.318366][ T21] vfs_unlink+0x3c2/0x510 [ 41.322939][ T21] devtmpfs_work_loop+0xdc6/0x1070 [ 41.328348][ T21] ? public_dev_mount+0xe0/0xe0 [ 41.333220][ T21] ? psi_task_change+0x1dc/0x390 [ 41.338357][ T21] ? try_invoke_on_locked_down_task+0x280/0x280 [ 41.344609][ T21] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 41.350382][ T21] ? _raw_spin_lock+0x1b0/0x1b0 [ 41.355346][ T21] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 41.361493][ T21] ? complete+0x65/0xb0 [ 41.365751][ T21] devtmpfsd+0x49/0x50 [ 41.369956][ T21] kthread+0x349/0x3d0 [ 41.374038][ T21] ? vclkdev_alloc+0x150/0x150 [ 41.378898][ T21] ? kthread_blkcg+0xd0/0xd0 [ 41.383619][ T21] ret_from_fork+0x1f/0x30 [ 41.388168][ T21] ---[ end trace 100c67114ae8d3b4 ]--- [ 41.417640][ T426] FAULT_INJECTION: forcing a failure. [ 41.417640][ T426] name failslab, interval 1, probability 0, space 0, times 0 [ 41.430300][ T426] CPU: 1 PID: 426 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 41.442706][ T426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.453355][ T426] Call Trace: [ 41.456631][ T426] dump_stack_lvl+0x1e2/0x24b [ 41.461281][ T426] ? panic+0x7d7/0x7d7 [ 41.465436][ T426] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.470906][ T426] ? __kasan_kmalloc+0x9/0x10 [ 41.475555][ T426] ? kobj_map+0x72/0x6f0 [ 41.479768][ T426] ? __device_add_disk+0x6e0/0x11b0 [ 41.484943][ T426] ? device_add_disk+0x2a/0x40 [ 41.489681][ T426] ? loop_control_ioctl+0x564/0x740 [ 41.494881][ T426] ? __se_sys_ioctl+0x115/0x190 [ 41.499707][ T426] ? __x64_sys_ioctl+0x7b/0x90 [ 41.504444][ T426] dump_stack+0x15/0x17 [ 41.508591][ T426] should_fail+0x3c0/0x510 [ 41.512981][ T426] ? kvasprintf_const+0x139/0x180 [ 41.517978][ T426] __should_failslab+0x9f/0xe0 [ 41.522733][ T426] should_failslab+0x9/0x20 [ 41.527213][ T426] __kmalloc_track_caller+0x5f/0x350 [ 41.532471][ T426] kstrdup_const+0x55/0x90 [ 41.536871][ T426] kvasprintf_const+0x139/0x180 [ 41.541699][ T426] kobject_set_name_vargs+0x61/0x120 [ 41.547133][ T426] dev_set_name+0xd1/0x120 [ 41.551523][ T426] ? __kmalloc+0x1f7/0x360 [ 41.555933][ T426] ? get_device+0x30/0x30 [ 41.560599][ T426] ? kobj_map+0x6ad/0x6f0 [ 41.565052][ T426] __device_add_disk+0x733/0x11b0 [ 41.570055][ T426] ? device_add_disk+0x40/0x40 [ 41.574796][ T426] ? vsprintf+0x40/0x40 [ 41.578928][ T426] device_add_disk+0x2a/0x40 [ 41.583686][ T426] loop_add+0x554/0x7b0 [ 41.587912][ T426] loop_control_ioctl+0x564/0x740 [ 41.592916][ T426] ? loop_remove+0xb0/0xb0 [ 41.597322][ T426] ? __fget_files+0x310/0x370 [ 41.601973][ T426] ? security_file_ioctl+0xb1/0xd0 [ 41.607071][ T426] ? loop_remove+0xb0/0xb0 [ 41.611470][ T426] __se_sys_ioctl+0x115/0x190 [ 41.616119][ T426] __x64_sys_ioctl+0x7b/0x90 [ 41.620684][ T426] do_syscall_64+0x34/0x70 [ 41.625098][ T426] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.631249][ T426] RIP: 0033:0x7f144797e0e9 [ 41.635637][ T426] 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 [ 41.655238][ T426] RSP: 002b:00007f14478d3168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.663639][ T426] RAX: ffffffffffffffda RBX: 00007f1447a91030 RCX: 00007f144797e0e9 [ 41.671596][ T426] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.679555][ T426] RBP: 00007f14478d31d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.687510][ T426] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.695636][ T426] R13: 00007ffd00a6533f R14: 00007f14478d3300 R15: 0000000000022000 [ 41.710923][ T428] FAULT_INJECTION: forcing a failure. [ 41.710923][ T428] name failslab, interval 1, probability 0, space 0, times 0 [ 41.724541][ T428] CPU: 1 PID: 428 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 41.736933][ T428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.746983][ T428] Call Trace: [ 41.750254][ T428] dump_stack_lvl+0x1e2/0x24b [ 41.754918][ T428] ? panic+0x7d7/0x7d7 [ 41.758963][ T428] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.764395][ T428] dump_stack+0x15/0x17 [ 41.768610][ T428] should_fail+0x3c0/0x510 [ 41.773004][ T428] __should_failslab+0x9f/0xe0 [ 41.777762][ T428] should_failslab+0x9/0x20 [ 41.782259][ T428] kmem_cache_alloc+0x3f/0x300 [ 41.787002][ T428] ? __kernfs_new_node+0xdb/0x6e0 [ 41.792000][ T428] __kernfs_new_node+0xdb/0x6e0 [ 41.796827][ T428] ? stack_trace_save+0x12d/0x1f0 [ 41.801953][ T428] ? kernfs_new_node+0x170/0x170 [ 41.806916][ T428] ? stack_trace_snprint+0x100/0x100 [ 41.812263][ T428] ? dput+0x2ce/0x320 [ 41.816221][ T428] ? device_add+0xbe/0xbd0 [ 41.820635][ T428] kernfs_create_dir_ns+0x9b/0x230 [ 41.825831][ T428] sysfs_create_dir_ns+0x181/0x390 [ 41.830941][ T428] ? sysfs_warn_dup+0xa0/0xa0 [ 41.835774][ T428] kobject_add_internal+0x766/0xda0 [ 41.840945][ T428] kobject_add+0x14c/0x210 [ 41.845336][ T428] ? _raw_spin_lock+0xa3/0x1b0 [ 41.850076][ T428] ? kobject_init+0x1e0/0x1e0 [ 41.854729][ T428] ? __kasan_check_write+0x14/0x20 [ 41.859901][ T428] ? mutex_unlock+0x1d/0x40 [ 41.864378][ T428] ? get_device_parent+0x2c5/0x430 [ 41.869460][ T428] device_add+0x3ca/0xbd0 [ 41.873764][ T428] __device_add_disk+0x7c1/0x11b0 [ 41.878761][ T428] ? device_add_disk+0x40/0x40 [ 41.883502][ T428] ? vsprintf+0x40/0x40 [ 41.887657][ T428] device_add_disk+0x2a/0x40 [ 41.892237][ T428] loop_add+0x554/0x7b0 [ 41.896380][ T428] loop_control_ioctl+0x564/0x740 [ 41.901376][ T428] ? loop_remove+0xb0/0xb0 [ 41.905765][ T428] ? __fget_files+0x310/0x370 [ 41.910415][ T428] ? security_file_ioctl+0xb1/0xd0 [ 41.915513][ T428] ? loop_remove+0xb0/0xb0 [ 41.919907][ T428] __se_sys_ioctl+0x115/0x190 [ 41.924585][ T428] __x64_sys_ioctl+0x7b/0x90 [ 41.929156][ T428] do_syscall_64+0x34/0x70 [ 41.933548][ T428] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.939426][ T428] RIP: 0033:0x7f144797e0e9 [ 41.943815][ T428] 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 [ 41.964148][ T428] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.972596][ T428] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 41.980557][ T428] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.988534][ T428] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.996581][ T428] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.004544][ T428] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 42.013485][ T428] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 42.028077][ T430] FAULT_INJECTION: forcing a failure. [ 42.028077][ T430] name failslab, interval 1, probability 0, space 0, times 0 [ 42.040794][ T430] CPU: 0 PID: 430 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.052945][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.063266][ T430] Call Trace: [ 42.066539][ T430] dump_stack_lvl+0x1e2/0x24b [ 42.071324][ T430] ? panic+0x7d7/0x7d7 [ 42.075472][ T430] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.080924][ T430] ? memcpy+0x56/0x70 [ 42.084884][ T430] dump_stack+0x15/0x17 [ 42.089118][ T430] should_fail+0x3c0/0x510 [ 42.093516][ T430] ? device_add+0xbe/0xbd0 [ 42.097908][ T430] __should_failslab+0x9f/0xe0 [ 42.102755][ T430] should_failslab+0x9/0x20 [ 42.107365][ T430] kmem_cache_alloc_trace+0x3a/0x330 [ 42.112946][ T430] ? __kasan_check_write+0x14/0x20 [ 42.118043][ T430] device_add+0xbe/0xbd0 [ 42.122364][ T430] __device_add_disk+0x7c1/0x11b0 [ 42.127624][ T430] ? device_add_disk+0x40/0x40 [ 42.132398][ T430] ? vsprintf+0x40/0x40 [ 42.136543][ T430] device_add_disk+0x2a/0x40 [ 42.141212][ T430] loop_add+0x554/0x7b0 [ 42.145351][ T430] loop_control_ioctl+0x564/0x740 [ 42.151187][ T430] ? loop_remove+0xb0/0xb0 [ 42.155583][ T430] ? __fget_files+0x310/0x370 [ 42.160615][ T430] ? security_file_ioctl+0xb1/0xd0 [ 42.165722][ T430] ? loop_remove+0xb0/0xb0 [ 42.170108][ T430] __se_sys_ioctl+0x115/0x190 [ 42.174757][ T430] __x64_sys_ioctl+0x7b/0x90 [ 42.179322][ T430] do_syscall_64+0x34/0x70 [ 42.183741][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.189831][ T430] RIP: 0033:0x7f144797e0e9 [ 42.194789][ T430] 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 [ 42.214828][ T430] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.223494][ T430] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 42.231442][ T430] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.239390][ T430] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.247780][ T430] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.255732][ T430] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 42.271291][ T432] FAULT_INJECTION: forcing a failure. [ 42.271291][ T432] name failslab, interval 1, probability 0, space 0, times 0 [ 42.284044][ T432] CPU: 0 PID: 432 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.296265][ T432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.306396][ T432] Call Trace: [ 42.309668][ T432] dump_stack_lvl+0x1e2/0x24b [ 42.314373][ T432] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.319806][ T432] dump_stack+0x15/0x17 [ 42.323935][ T432] should_fail+0x3c0/0x510 [ 42.328330][ T432] ? __kernfs_new_node+0x99/0x6e0 [ 42.333953][ T432] __should_failslab+0x9f/0xe0 [ 42.338713][ T432] should_failslab+0x9/0x20 [ 42.343200][ T432] __kmalloc_track_caller+0x5f/0x350 [ 42.348619][ T432] ? __kernel_text_address+0x9a/0x110 [ 42.354562][ T432] ? unwind_get_return_address+0x4c/0x90 [ 42.360178][ T432] kstrdup_const+0x55/0x90 [ 42.364571][ T432] __kernfs_new_node+0x99/0x6e0 [ 42.369398][ T432] ? stack_trace_save+0x12d/0x1f0 [ 42.374398][ T432] ? kernfs_new_node+0x170/0x170 [ 42.379518][ T432] ? stack_trace_snprint+0x100/0x100 [ 42.384786][ T432] ? dput+0x2ce/0x320 [ 42.388933][ T432] ? device_add+0xbe/0xbd0 [ 42.393423][ T432] kernfs_create_dir_ns+0x9b/0x230 [ 42.398541][ T432] sysfs_create_dir_ns+0x181/0x390 [ 42.403648][ T432] ? sysfs_warn_dup+0xa0/0xa0 [ 42.408300][ T432] kobject_add_internal+0x766/0xda0 [ 42.413559][ T432] kobject_add+0x14c/0x210 [ 42.418474][ T432] ? _raw_spin_lock+0xa3/0x1b0 [ 42.423226][ T432] ? kobject_init+0x1e0/0x1e0 [ 42.427973][ T432] ? __kasan_check_write+0x14/0x20 [ 42.433069][ T432] ? mutex_unlock+0x1d/0x40 [ 42.437545][ T432] ? get_device_parent+0x2c5/0x430 [ 42.442642][ T432] device_add+0x3ca/0xbd0 [ 42.446956][ T432] __device_add_disk+0x7c1/0x11b0 [ 42.451985][ T432] ? device_add_disk+0x40/0x40 [ 42.456756][ T432] ? vsprintf+0x40/0x40 [ 42.461233][ T432] device_add_disk+0x2a/0x40 [ 42.465895][ T432] loop_add+0x554/0x7b0 [ 42.470039][ T432] loop_control_ioctl+0x564/0x740 [ 42.475039][ T432] ? loop_remove+0xb0/0xb0 [ 42.479448][ T432] ? __fget_files+0x310/0x370 [ 42.484128][ T432] ? security_file_ioctl+0xb1/0xd0 [ 42.489224][ T432] ? loop_remove+0xb0/0xb0 [ 42.493886][ T432] __se_sys_ioctl+0x115/0x190 [ 42.498568][ T432] __x64_sys_ioctl+0x7b/0x90 [ 42.503137][ T432] do_syscall_64+0x34/0x70 [ 42.507529][ T432] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.513393][ T432] RIP: 0033:0x7f144797e0e9 [ 42.517779][ T432] 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 [ 42.537533][ T432] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.546033][ T432] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 42.553990][ T432] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.561944][ T432] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.569901][ T432] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.577936][ T432] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 42.586613][ T432] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 42.603208][ T434] FAULT_INJECTION: forcing a failure. [ 42.603208][ T434] name failslab, interval 1, probability 0, space 0, times 0 [ 42.616012][ T434] CPU: 1 PID: 434 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.628292][ T434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.638349][ T434] Call Trace: [ 42.641723][ T434] dump_stack_lvl+0x1e2/0x24b [ 42.646380][ T434] ? panic+0x7d7/0x7d7 [ 42.650427][ T434] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.656383][ T434] ? memcpy+0x56/0x70 [ 42.660340][ T434] dump_stack+0x15/0x17 [ 42.664470][ T434] should_fail+0x3c0/0x510 [ 42.668872][ T434] ? device_add+0xbe/0xbd0 [ 42.673266][ T434] __should_failslab+0x9f/0xe0 [ 42.678023][ T434] should_failslab+0x9/0x20 [ 42.682504][ T434] kmem_cache_alloc_trace+0x3a/0x330 [ 42.687766][ T434] ? __kasan_check_write+0x14/0x20 [ 42.692859][ T434] device_add+0xbe/0xbd0 [ 42.697077][ T434] __device_add_disk+0x7c1/0x11b0 [ 42.702088][ T434] ? device_add_disk+0x40/0x40 [ 42.706844][ T434] ? vsprintf+0x40/0x40 [ 42.711001][ T434] device_add_disk+0x2a/0x40 [ 42.715576][ T434] loop_add+0x554/0x7b0 [ 42.719749][ T434] loop_control_ioctl+0x564/0x740 [ 42.725091][ T434] ? loop_remove+0xb0/0xb0 [ 42.729513][ T434] ? __fget_files+0x310/0x370 [ 42.734306][ T434] ? security_file_ioctl+0xb1/0xd0 [ 42.739408][ T434] ? loop_remove+0xb0/0xb0 [ 42.743850][ T434] __se_sys_ioctl+0x115/0x190 [ 42.748518][ T434] __x64_sys_ioctl+0x7b/0x90 [ 42.753093][ T434] do_syscall_64+0x34/0x70 [ 42.757591][ T434] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.763699][ T434] RIP: 0033:0x7f144797e0e9 [ 42.768272][ T434] 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 [ 42.787943][ T434] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.796453][ T434] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 42.804592][ T434] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.812541][ T434] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 2022/05/26 15:33:12 executed programs: 11 [ 42.820608][ T434] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.828668][ T434] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 42.844324][ T436] FAULT_INJECTION: forcing a failure. [ 42.844324][ T436] name failslab, interval 1, probability 0, space 0, times 0 [ 42.857153][ T436] CPU: 1 PID: 436 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.869496][ T436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.879655][ T436] Call Trace: [ 42.882953][ T436] dump_stack_lvl+0x1e2/0x24b [ 42.887623][ T436] ? panic+0x7d7/0x7d7 [ 42.891718][ T436] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.897154][ T436] ? memcpy+0x56/0x70 [ 42.901136][ T436] dump_stack+0x15/0x17 [ 42.905367][ T436] should_fail+0x3c0/0x510 [ 42.909767][ T436] ? device_add+0xbe/0xbd0 [ 42.914165][ T436] __should_failslab+0x9f/0xe0 [ 42.919086][ T436] should_failslab+0x9/0x20 [ 42.923577][ T436] kmem_cache_alloc_trace+0x3a/0x330 [ 42.928840][ T436] ? __kasan_check_write+0x14/0x20 [ 42.933979][ T436] device_add+0xbe/0xbd0 [ 42.938444][ T436] __device_add_disk+0x7c1/0x11b0 [ 42.943804][ T436] ? device_add_disk+0x40/0x40 [ 42.948683][ T436] ? vsprintf+0x40/0x40 [ 42.953174][ T436] device_add_disk+0x2a/0x40 [ 42.957763][ T436] loop_add+0x554/0x7b0 [ 42.962002][ T436] loop_control_ioctl+0x564/0x740 [ 42.967002][ T436] ? loop_remove+0xb0/0xb0 [ 42.972040][ T436] ? __fget_files+0x310/0x370 [ 42.976781][ T436] ? security_file_ioctl+0xb1/0xd0 [ 42.981864][ T436] ? loop_remove+0xb0/0xb0 [ 42.986373][ T436] __se_sys_ioctl+0x115/0x190 [ 42.991155][ T436] __x64_sys_ioctl+0x7b/0x90 [ 42.996080][ T436] do_syscall_64+0x34/0x70 [ 43.000493][ T436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.006491][ T436] RIP: 0033:0x7f144797e0e9 [ 43.011350][ T436] 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 [ 43.031300][ T436] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.039823][ T436] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 43.047782][ T436] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.055859][ T436] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.063966][ T436] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.072035][ T436] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 43.086050][ T438] FAULT_INJECTION: forcing a failure. [ 43.086050][ T438] name failslab, interval 1, probability 0, space 0, times 0 [ 43.098876][ T438] CPU: 0 PID: 438 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 43.111002][ T438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.121033][ T438] Call Trace: [ 43.124371][ T438] dump_stack_lvl+0x1e2/0x24b [ 43.129121][ T438] ? panic+0x7d7/0x7d7 [ 43.133359][ T438] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.139179][ T438] ? __kasan_kmalloc+0x9/0x10 [ 43.143976][ T438] ? kobj_map+0x72/0x6f0 [ 43.148309][ T438] ? __device_add_disk+0x6e0/0x11b0 [ 43.153604][ T438] ? device_add_disk+0x2a/0x40 [ 43.158344][ T438] ? loop_control_ioctl+0x564/0x740 [ 43.163527][ T438] ? __se_sys_ioctl+0x115/0x190 [ 43.168346][ T438] ? __x64_sys_ioctl+0x7b/0x90 [ 43.173088][ T438] dump_stack+0x15/0x17 [ 43.177214][ T438] should_fail+0x3c0/0x510 [ 43.181613][ T438] ? kvasprintf_const+0x139/0x180 [ 43.186619][ T438] __should_failslab+0x9f/0xe0 [ 43.191442][ T438] should_failslab+0x9/0x20 [ 43.195914][ T438] __kmalloc_track_caller+0x5f/0x350 [ 43.201171][ T438] kstrdup_const+0x55/0x90 [ 43.205562][ T438] kvasprintf_const+0x139/0x180 [ 43.210471][ T438] kobject_set_name_vargs+0x61/0x120 [ 43.215724][ T438] dev_set_name+0xd1/0x120 [ 43.220137][ T438] ? __kmalloc+0x1f7/0x360 [ 43.224674][ T438] ? get_device+0x30/0x30 [ 43.230188][ T438] ? kobj_map+0x6ad/0x6f0 [ 43.234499][ T438] __device_add_disk+0x733/0x11b0 [ 43.239497][ T438] ? device_add_disk+0x40/0x40 [ 43.244321][ T438] ? vsprintf+0x40/0x40 [ 43.248624][ T438] device_add_disk+0x2a/0x40 [ 43.253204][ T438] loop_add+0x554/0x7b0 [ 43.257359][ T438] loop_control_ioctl+0x564/0x740 [ 43.262369][ T438] ? loop_remove+0xb0/0xb0 [ 43.266848][ T438] ? __fget_files+0x310/0x370 [ 43.271498][ T438] ? security_file_ioctl+0xb1/0xd0 [ 43.276596][ T438] ? loop_remove+0xb0/0xb0 [ 43.280985][ T438] __se_sys_ioctl+0x115/0x190 [ 43.285634][ T438] __x64_sys_ioctl+0x7b/0x90 [ 43.290222][ T438] do_syscall_64+0x34/0x70 [ 43.294666][ T438] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.300548][ T438] RIP: 0033:0x7f144797e0e9 [ 43.304950][ T438] 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 [ 43.324560][ T438] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.332948][ T438] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 43.340891][ T438] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.348837][ T438] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.356835][ T438] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.364898][ T438] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 43.379576][ T440] FAULT_INJECTION: forcing a failure. [ 43.379576][ T440] name failslab, interval 1, probability 0, space 0, times 0 [ 43.392304][ T440] CPU: 0 PID: 440 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 43.404426][ T440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.414580][ T440] Call Trace: [ 43.417991][ T440] dump_stack_lvl+0x1e2/0x24b [ 43.422680][ T440] ? panic+0x7d7/0x7d7 [ 43.426817][ T440] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.432368][ T440] ? memcpy+0x56/0x70 [ 43.436347][ T440] dump_stack+0x15/0x17 [ 43.440503][ T440] should_fail+0x3c0/0x510 [ 43.444903][ T440] ? device_add+0xbe/0xbd0 [ 43.449518][ T440] __should_failslab+0x9f/0xe0 [ 43.454369][ T440] should_failslab+0x9/0x20 [ 43.458859][ T440] kmem_cache_alloc_trace+0x3a/0x330 [ 43.464566][ T440] ? __kasan_check_write+0x14/0x20 [ 43.469673][ T440] device_add+0xbe/0xbd0 [ 43.474150][ T440] __device_add_disk+0x7c1/0x11b0 [ 43.479208][ T440] ? device_add_disk+0x40/0x40 [ 43.483964][ T440] ? vsprintf+0x40/0x40 [ 43.488106][ T440] device_add_disk+0x2a/0x40 [ 43.492678][ T440] loop_add+0x554/0x7b0 [ 43.496810][ T440] loop_control_ioctl+0x564/0x740 [ 43.501981][ T440] ? loop_remove+0xb0/0xb0 [ 43.506505][ T440] ? __fget_files+0x310/0x370 [ 43.511162][ T440] ? security_file_ioctl+0xb1/0xd0 [ 43.516321][ T440] ? loop_remove+0xb0/0xb0 [ 43.520724][ T440] __se_sys_ioctl+0x115/0x190 [ 43.525380][ T440] __x64_sys_ioctl+0x7b/0x90 [ 43.529957][ T440] do_syscall_64+0x34/0x70 [ 43.534439][ T440] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.540399][ T440] RIP: 0033:0x7f144797e0e9 [ 43.544797][ T440] 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 [ 43.564552][ T440] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.573127][ T440] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 43.581089][ T440] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.589710][ T440] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.598057][ T440] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.606278][ T440] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 43.625703][ T442] FAULT_INJECTION: forcing a failure. [ 43.625703][ T442] name failslab, interval 1, probability 0, space 0, times 0 [ 43.638808][ T442] CPU: 0 PID: 442 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 43.651247][ T442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.661798][ T442] Call Trace: [ 43.665537][ T442] dump_stack_lvl+0x1e2/0x24b [ 43.670295][ T442] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.675826][ T442] dump_stack+0x15/0x17 [ 43.679956][ T442] should_fail+0x3c0/0x510 [ 43.684342][ T442] ? __kernfs_new_node+0x99/0x6e0 [ 43.689493][ T442] __should_failslab+0x9f/0xe0 [ 43.694415][ T442] should_failslab+0x9/0x20 [ 43.698902][ T442] __kmalloc_track_caller+0x5f/0x350 [ 43.704335][ T442] ? __kernel_text_address+0x9a/0x110 [ 43.709682][ T442] ? unwind_get_return_address+0x4c/0x90 [ 43.715383][ T442] kstrdup_const+0x55/0x90 [ 43.719825][ T442] __kernfs_new_node+0x99/0x6e0 [ 43.725130][ T442] ? stack_trace_save+0x12d/0x1f0 [ 43.730379][ T442] ? kernfs_new_node+0x170/0x170 [ 43.735387][ T442] ? stack_trace_snprint+0x100/0x100 [ 43.740662][ T442] ? dput+0x2ce/0x320 [ 43.744744][ T442] ? device_add+0xbe/0xbd0 [ 43.749168][ T442] kernfs_create_dir_ns+0x9b/0x230 [ 43.754268][ T442] sysfs_create_dir_ns+0x181/0x390 [ 43.759466][ T442] ? sysfs_warn_dup+0xa0/0xa0 [ 43.764379][ T442] kobject_add_internal+0x766/0xda0 [ 43.769681][ T442] kobject_add+0x14c/0x210 [ 43.774295][ T442] ? _raw_spin_lock+0xa3/0x1b0 [ 43.779069][ T442] ? kobject_init+0x1e0/0x1e0 [ 43.783740][ T442] ? __kasan_check_write+0x14/0x20 [ 43.788872][ T442] ? mutex_unlock+0x1d/0x40 [ 43.793366][ T442] ? get_device_parent+0x2c5/0x430 [ 43.798574][ T442] device_add+0x3ca/0xbd0 [ 43.803611][ T442] __device_add_disk+0x7c1/0x11b0 [ 43.808968][ T442] ? device_add_disk+0x40/0x40 [ 43.813742][ T442] ? vsprintf+0x40/0x40 [ 43.817959][ T442] device_add_disk+0x2a/0x40 [ 43.822559][ T442] loop_add+0x554/0x7b0 [ 43.826699][ T442] loop_control_ioctl+0x564/0x740 [ 43.831708][ T442] ? loop_remove+0xb0/0xb0 [ 43.836202][ T442] ? __fget_files+0x310/0x370 [ 43.841201][ T442] ? security_file_ioctl+0xb1/0xd0 [ 43.846282][ T442] ? loop_remove+0xb0/0xb0 [ 43.850684][ T442] __se_sys_ioctl+0x115/0x190 [ 43.855334][ T442] __x64_sys_ioctl+0x7b/0x90 [ 43.859983][ T442] do_syscall_64+0x34/0x70 [ 43.864379][ T442] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.870342][ T442] RIP: 0033:0x7f144797e0e9 [ 43.874749][ T442] 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 [ 43.894419][ T442] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.903065][ T442] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 43.911103][ T442] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.919345][ T442] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.927304][ T442] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.936017][ T442] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 43.944405][ T442] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 43.946923][ T23] kauditd_printk_skb: 3 callbacks suppressed [ 43.946933][ T23] audit: type=1400 audit(1653579194.030:161): 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 [ 43.981434][ T23] audit: type=1400 audit(1653579194.030:162): 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 [ 43.990833][ T444] FAULT_INJECTION: forcing a failure. [ 43.990833][ T444] name failslab, interval 1, probability 0, space 0, times 0 [ 44.004487][ T23] audit: type=1400 audit(1653579194.030:163): 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 [ 44.016907][ T444] CPU: 0 PID: 444 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 44.049686][ T444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.059720][ T444] Call Trace: [ 44.063007][ T444] dump_stack_lvl+0x1e2/0x24b [ 44.067688][ T444] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.073248][ T444] dump_stack+0x15/0x17 [ 44.077385][ T444] should_fail+0x3c0/0x510 [ 44.081782][ T444] ? __kernfs_new_node+0x99/0x6e0 [ 44.086939][ T444] __should_failslab+0x9f/0xe0 [ 44.091907][ T444] should_failslab+0x9/0x20 [ 44.096400][ T444] __kmalloc_track_caller+0x5f/0x350 [ 44.101868][ T444] ? __kernel_text_address+0x9a/0x110 [ 44.107284][ T444] ? unwind_get_return_address+0x4c/0x90 [ 44.112917][ T444] kstrdup_const+0x55/0x90 [ 44.117307][ T444] __kernfs_new_node+0x99/0x6e0 [ 44.122130][ T444] ? stack_trace_save+0x12d/0x1f0 [ 44.127311][ T444] ? kernfs_new_node+0x170/0x170 [ 44.132250][ T444] ? stack_trace_snprint+0x100/0x100 [ 44.137891][ T444] ? dput+0x2ce/0x320 [ 44.142114][ T444] ? device_add+0xbe/0xbd0 [ 44.146589][ T444] kernfs_create_dir_ns+0x9b/0x230 [ 44.151682][ T444] sysfs_create_dir_ns+0x181/0x390 [ 44.156785][ T444] ? sysfs_warn_dup+0xa0/0xa0 [ 44.161453][ T444] kobject_add_internal+0x766/0xda0 [ 44.166637][ T444] kobject_add+0x14c/0x210 [ 44.171033][ T444] ? _raw_spin_lock+0xa3/0x1b0 [ 44.175828][ T444] ? kobject_init+0x1e0/0x1e0 [ 44.180487][ T444] ? __kasan_check_write+0x14/0x20 [ 44.185801][ T444] ? mutex_unlock+0x1d/0x40 [ 44.190288][ T444] ? get_device_parent+0x2c5/0x430 [ 44.195477][ T444] device_add+0x3ca/0xbd0 [ 44.199797][ T444] __device_add_disk+0x7c1/0x11b0 [ 44.204816][ T444] ? device_add_disk+0x40/0x40 [ 44.209554][ T444] ? vsprintf+0x40/0x40 [ 44.213679][ T444] device_add_disk+0x2a/0x40 [ 44.218327][ T444] loop_add+0x554/0x7b0 [ 44.222453][ T444] loop_control_ioctl+0x564/0x740 [ 44.227546][ T444] ? loop_remove+0xb0/0xb0 [ 44.231932][ T444] ? __fget_files+0x310/0x370 [ 44.236583][ T444] ? security_file_ioctl+0xb1/0xd0 [ 44.241805][ T444] ? loop_remove+0xb0/0xb0 [ 44.246203][ T444] __se_sys_ioctl+0x115/0x190 [ 44.250908][ T444] __x64_sys_ioctl+0x7b/0x90 [ 44.255477][ T444] do_syscall_64+0x34/0x70 [ 44.259867][ T444] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.265729][ T444] RIP: 0033:0x7f144797e0e9 [ 44.270118][ T444] 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 [ 44.289791][ T444] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.298191][ T444] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 44.306138][ T444] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.314205][ T444] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.322171][ T444] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.330249][ T444] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 44.339509][ T444] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 44.354598][ T446] FAULT_INJECTION: forcing a failure. [ 44.354598][ T446] name failslab, interval 1, probability 0, space 0, times 0 [ 44.367444][ T446] CPU: 1 PID: 446 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 44.379671][ T446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.389709][ T446] Call Trace: [ 44.392993][ T446] dump_stack_lvl+0x1e2/0x24b [ 44.397653][ T446] ? panic+0x7d7/0x7d7 [ 44.401698][ T446] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.407151][ T446] dump_stack+0x15/0x17 [ 44.411722][ T446] should_fail+0x3c0/0x510 [ 44.416119][ T446] __should_failslab+0x9f/0xe0 [ 44.420860][ T446] should_failslab+0x9/0x20 [ 44.425340][ T446] kmem_cache_alloc+0x3f/0x300 [ 44.430093][ T446] ? __kernfs_new_node+0xdb/0x6e0 [ 44.435105][ T446] __kernfs_new_node+0xdb/0x6e0 [ 44.440003][ T446] ? stack_trace_save+0x12d/0x1f0 [ 44.445001][ T446] ? kernfs_new_node+0x170/0x170 [ 44.450558][ T446] ? stack_trace_snprint+0x100/0x100 [ 44.455909][ T446] ? dput+0x2ce/0x320 [ 44.460230][ T446] ? device_add+0xbe/0xbd0 [ 44.464628][ T446] kernfs_create_dir_ns+0x9b/0x230 [ 44.469718][ T446] sysfs_create_dir_ns+0x181/0x390 [ 44.474904][ T446] ? sysfs_warn_dup+0xa0/0xa0 [ 44.479580][ T446] kobject_add_internal+0x766/0xda0 [ 44.484902][ T446] kobject_add+0x14c/0x210 [ 44.489382][ T446] ? _raw_spin_lock+0xa3/0x1b0 [ 44.494121][ T446] ? kobject_init+0x1e0/0x1e0 [ 44.498785][ T446] ? __kasan_check_write+0x14/0x20 [ 44.503871][ T446] ? mutex_unlock+0x1d/0x40 [ 44.508434][ T446] ? get_device_parent+0x2c5/0x430 [ 44.513524][ T446] device_add+0x3ca/0xbd0 [ 44.517835][ T446] __device_add_disk+0x7c1/0x11b0 [ 44.522841][ T446] ? device_add_disk+0x40/0x40 [ 44.527582][ T446] ? vsprintf+0x40/0x40 [ 44.531722][ T446] device_add_disk+0x2a/0x40 [ 44.536295][ T446] loop_add+0x554/0x7b0 [ 44.540606][ T446] loop_control_ioctl+0x564/0x740 [ 44.545624][ T446] ? loop_remove+0xb0/0xb0 [ 44.550116][ T446] ? __fget_files+0x310/0x370 [ 44.555049][ T446] ? security_file_ioctl+0xb1/0xd0 [ 44.560319][ T446] ? loop_remove+0xb0/0xb0 [ 44.564716][ T446] __se_sys_ioctl+0x115/0x190 [ 44.569511][ T446] __x64_sys_ioctl+0x7b/0x90 [ 44.574182][ T446] do_syscall_64+0x34/0x70 [ 44.578576][ T446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.584479][ T446] RIP: 0033:0x7f144797e0e9 [ 44.588996][ T446] 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 [ 44.608712][ T446] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.617120][ T446] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 44.625173][ T446] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.633128][ T446] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.641164][ T446] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.649114][ T446] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 44.657487][ T446] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 44.671656][ T448] FAULT_INJECTION: forcing a failure. [ 44.671656][ T448] name failslab, interval 1, probability 0, space 0, times 0 [ 44.684276][ T448] CPU: 1 PID: 448 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 44.696742][ T448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.706787][ T448] Call Trace: [ 44.710064][ T448] dump_stack_lvl+0x1e2/0x24b [ 44.715362][ T448] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.720927][ T448] dump_stack+0x15/0x17 [ 44.725345][ T448] should_fail+0x3c0/0x510 [ 44.729827][ T448] ? __kernfs_new_node+0x99/0x6e0 [ 44.735090][ T448] __should_failslab+0x9f/0xe0 [ 44.740091][ T448] should_failslab+0x9/0x20 [ 44.744772][ T448] __kmalloc_track_caller+0x5f/0x350 [ 44.750035][ T448] ? __kernel_text_address+0x9a/0x110 [ 44.755482][ T448] ? unwind_get_return_address+0x4c/0x90 [ 44.761103][ T448] kstrdup_const+0x55/0x90 [ 44.765493][ T448] __kernfs_new_node+0x99/0x6e0 [ 44.770409][ T448] ? stack_trace_save+0x12d/0x1f0 [ 44.775408][ T448] ? kernfs_new_node+0x170/0x170 [ 44.780314][ T448] ? stack_trace_snprint+0x100/0x100 [ 44.785657][ T448] ? dput+0x2ce/0x320 [ 44.789612][ T448] ? device_add+0xbe/0xbd0 [ 44.793999][ T448] kernfs_create_dir_ns+0x9b/0x230 [ 44.799103][ T448] sysfs_create_dir_ns+0x181/0x390 [ 44.804200][ T448] ? sysfs_warn_dup+0xa0/0xa0 [ 44.808863][ T448] kobject_add_internal+0x766/0xda0 [ 44.814055][ T448] kobject_add+0x14c/0x210 [ 44.818541][ T448] ? _raw_spin_lock+0xa3/0x1b0 [ 44.823383][ T448] ? kobject_init+0x1e0/0x1e0 [ 44.828050][ T448] ? __kasan_check_write+0x14/0x20 [ 44.833146][ T448] ? mutex_unlock+0x1d/0x40 [ 44.837727][ T448] ? get_device_parent+0x2c5/0x430 [ 44.842828][ T448] device_add+0x3ca/0xbd0 [ 44.847143][ T448] __device_add_disk+0x7c1/0x11b0 [ 44.852155][ T448] ? device_add_disk+0x40/0x40 [ 44.856974][ T448] ? vsprintf+0x40/0x40 [ 44.861133][ T448] device_add_disk+0x2a/0x40 [ 44.865700][ T448] loop_add+0x554/0x7b0 [ 44.869850][ T448] loop_control_ioctl+0x564/0x740 [ 44.875111][ T448] ? loop_remove+0xb0/0xb0 [ 44.879511][ T448] ? __fget_files+0x310/0x370 [ 44.885117][ T448] ? security_file_ioctl+0xb1/0xd0 [ 44.890210][ T448] ? loop_remove+0xb0/0xb0 [ 44.894624][ T448] __se_sys_ioctl+0x115/0x190 [ 44.899476][ T448] __x64_sys_ioctl+0x7b/0x90 [ 44.904046][ T448] do_syscall_64+0x34/0x70 [ 44.908453][ T448] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.914319][ T448] RIP: 0033:0x7f144797e0e9 [ 44.919076][ T448] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.939014][ T448] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.947408][ T448] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 44.955724][ T448] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.963679][ T448] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.971659][ T448] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.980048][ T448] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 44.988974][ T448] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 45.003649][ T450] FAULT_INJECTION: forcing a failure. [ 45.003649][ T450] name failslab, interval 1, probability 0, space 0, times 0 [ 45.016378][ T450] CPU: 0 PID: 450 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.028535][ T450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.038580][ T450] Call Trace: [ 45.042049][ T450] dump_stack_lvl+0x1e2/0x24b [ 45.046953][ T450] ? panic+0x7d7/0x7d7 [ 45.051001][ T450] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.056450][ T450] ? memcpy+0x56/0x70 [ 45.060408][ T450] dump_stack+0x15/0x17 [ 45.064723][ T450] should_fail+0x3c0/0x510 [ 45.069117][ T450] ? device_add+0xbe/0xbd0 [ 45.073510][ T450] __should_failslab+0x9f/0xe0 [ 45.078345][ T450] should_failslab+0x9/0x20 [ 45.082840][ T450] kmem_cache_alloc_trace+0x3a/0x330 [ 45.088205][ T450] ? __kasan_check_write+0x14/0x20 [ 45.093301][ T450] device_add+0xbe/0xbd0 [ 45.097527][ T450] __device_add_disk+0x7c1/0x11b0 [ 45.102661][ T450] ? device_add_disk+0x40/0x40 [ 45.107509][ T450] ? vsprintf+0x40/0x40 [ 45.111670][ T450] device_add_disk+0x2a/0x40 [ 45.116265][ T450] loop_add+0x554/0x7b0 [ 45.120412][ T450] loop_control_ioctl+0x564/0x740 [ 45.125458][ T450] ? loop_remove+0xb0/0xb0 [ 45.129850][ T450] ? __fget_files+0x310/0x370 [ 45.134519][ T450] ? security_file_ioctl+0xb1/0xd0 [ 45.139682][ T450] ? loop_remove+0xb0/0xb0 [ 45.144160][ T450] __se_sys_ioctl+0x115/0x190 [ 45.148827][ T450] __x64_sys_ioctl+0x7b/0x90 [ 45.153395][ T450] do_syscall_64+0x34/0x70 [ 45.157792][ T450] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.163668][ T450] RIP: 0033:0x7f144797e0e9 [ 45.168079][ T450] 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 [ 45.187657][ T450] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.196045][ T450] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 45.203993][ T450] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.211938][ T450] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.220145][ T450] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.228112][ T450] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 45.243419][ T452] FAULT_INJECTION: forcing a failure. [ 45.243419][ T452] name failslab, interval 1, probability 0, space 0, times 0 [ 45.256333][ T452] CPU: 0 PID: 452 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.268716][ T452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.278855][ T452] Call Trace: [ 45.282394][ T452] dump_stack_lvl+0x1e2/0x24b [ 45.287043][ T452] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.292479][ T452] dump_stack+0x15/0x17 [ 45.296613][ T452] should_fail+0x3c0/0x510 [ 45.301001][ T452] ? __kernfs_new_node+0x99/0x6e0 [ 45.305997][ T452] __should_failslab+0x9f/0xe0 [ 45.310733][ T452] should_failslab+0x9/0x20 [ 45.315207][ T452] __kmalloc_track_caller+0x5f/0x350 [ 45.320470][ T452] ? __kernel_text_address+0x9a/0x110 [ 45.325836][ T452] ? unwind_get_return_address+0x4c/0x90 [ 45.331617][ T452] kstrdup_const+0x55/0x90 [ 45.336011][ T452] __kernfs_new_node+0x99/0x6e0 [ 45.340940][ T452] ? stack_trace_save+0x12d/0x1f0 [ 45.345944][ T452] ? kernfs_new_node+0x170/0x170 [ 45.350976][ T452] ? stack_trace_snprint+0x100/0x100 [ 45.356240][ T452] ? dput+0x2ce/0x320 [ 45.360204][ T452] ? device_add+0xbe/0xbd0 [ 45.364601][ T452] kernfs_create_dir_ns+0x9b/0x230 [ 45.369866][ T452] sysfs_create_dir_ns+0x181/0x390 [ 45.374969][ T452] ? sysfs_warn_dup+0xa0/0xa0 [ 45.379632][ T452] kobject_add_internal+0x766/0xda0 [ 45.384816][ T452] kobject_add+0x14c/0x210 [ 45.389337][ T452] ? _raw_spin_lock+0xa3/0x1b0 [ 45.394089][ T452] ? kobject_init+0x1e0/0x1e0 [ 45.398746][ T452] ? __kasan_check_write+0x14/0x20 [ 45.403836][ T452] ? mutex_unlock+0x1d/0x40 [ 45.408314][ T452] ? get_device_parent+0x2c5/0x430 [ 45.413410][ T452] device_add+0x3ca/0xbd0 [ 45.417728][ T452] __device_add_disk+0x7c1/0x11b0 [ 45.422729][ T452] ? device_add_disk+0x40/0x40 [ 45.427467][ T452] ? vsprintf+0x40/0x40 [ 45.431597][ T452] device_add_disk+0x2a/0x40 [ 45.436163][ T452] loop_add+0x554/0x7b0 [ 45.440294][ T452] loop_control_ioctl+0x564/0x740 [ 45.445380][ T452] ? loop_remove+0xb0/0xb0 [ 45.449812][ T452] ? __fget_files+0x310/0x370 [ 45.454460][ T452] ? security_file_ioctl+0xb1/0xd0 [ 45.459735][ T452] ? loop_remove+0xb0/0xb0 [ 45.464131][ T452] __se_sys_ioctl+0x115/0x190 [ 45.468814][ T452] __x64_sys_ioctl+0x7b/0x90 [ 45.473394][ T452] do_syscall_64+0x34/0x70 [ 45.477807][ T452] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.483682][ T452] RIP: 0033:0x7f144797e0e9 [ 45.488073][ T452] 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 [ 45.508005][ T452] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.516495][ T452] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 45.524541][ T452] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.532582][ T452] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.540923][ T452] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.548877][ T452] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 45.558613][ T452] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 45.572089][ T454] FAULT_INJECTION: forcing a failure. [ 45.572089][ T454] name failslab, interval 1, probability 0, space 0, times 0 [ 45.585415][ T454] CPU: 0 PID: 454 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.597691][ T454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.607875][ T454] Call Trace: [ 45.611171][ T454] dump_stack_lvl+0x1e2/0x24b [ 45.615824][ T454] ? panic+0x7d7/0x7d7 [ 45.619876][ T454] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.625308][ T454] ? memcpy+0x56/0x70 [ 45.629267][ T454] dump_stack+0x15/0x17 [ 45.633411][ T454] should_fail+0x3c0/0x510 [ 45.637802][ T454] ? device_add+0xbe/0xbd0 [ 45.642198][ T454] __should_failslab+0x9f/0xe0 [ 45.646941][ T454] should_failslab+0x9/0x20 [ 45.651458][ T454] kmem_cache_alloc_trace+0x3a/0x330 [ 45.656728][ T454] ? __kasan_check_write+0x14/0x20 [ 45.661820][ T454] device_add+0xbe/0xbd0 [ 45.666085][ T454] __device_add_disk+0x7c1/0x11b0 [ 45.671472][ T454] ? device_add_disk+0x40/0x40 [ 45.676333][ T454] ? vsprintf+0x40/0x40 [ 45.680511][ T454] device_add_disk+0x2a/0x40 [ 45.685105][ T454] loop_add+0x554/0x7b0 [ 45.689237][ T454] loop_control_ioctl+0x564/0x740 [ 45.694248][ T454] ? loop_remove+0xb0/0xb0 [ 45.699346][ T454] ? __fget_files+0x310/0x370 [ 45.704002][ T454] ? security_file_ioctl+0xb1/0xd0 [ 45.709087][ T454] ? loop_remove+0xb0/0xb0 [ 45.713546][ T454] __se_sys_ioctl+0x115/0x190 [ 45.718284][ T454] __x64_sys_ioctl+0x7b/0x90 [ 45.722864][ T454] do_syscall_64+0x34/0x70 [ 45.727348][ T454] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.733522][ T454] RIP: 0033:0x7f144797e0e9 [ 45.738004][ T454] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.757845][ T454] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.766244][ T454] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 45.774190][ T454] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.782141][ T454] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.790096][ T454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.798260][ T454] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 45.813001][ T456] FAULT_INJECTION: forcing a failure. [ 45.813001][ T456] name failslab, interval 1, probability 0, space 0, times 0 [ 45.825659][ T456] CPU: 0 PID: 456 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.837777][ T456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.848075][ T456] Call Trace: [ 45.851348][ T456] dump_stack_lvl+0x1e2/0x24b [ 45.856018][ T456] ? panic+0x7d7/0x7d7 [ 45.860065][ T456] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.865584][ T456] ? memcpy+0x56/0x70 [ 45.869541][ T456] dump_stack+0x15/0x17 [ 45.873758][ T456] should_fail+0x3c0/0x510 [ 45.878148][ T456] ? device_add+0xbe/0xbd0 [ 45.882535][ T456] __should_failslab+0x9f/0xe0 [ 45.887272][ T456] should_failslab+0x9/0x20 [ 45.891753][ T456] kmem_cache_alloc_trace+0x3a/0x330 [ 45.897009][ T456] ? __kasan_check_write+0x14/0x20 [ 45.902091][ T456] device_add+0xbe/0xbd0 [ 45.906324][ T456] __device_add_disk+0x7c1/0x11b0 [ 45.911419][ T456] ? device_add_disk+0x40/0x40 [ 45.916171][ T456] ? vsprintf+0x40/0x40 [ 45.920306][ T456] device_add_disk+0x2a/0x40 [ 45.924871][ T456] loop_add+0x554/0x7b0 [ 45.929006][ T456] loop_control_ioctl+0x564/0x740 [ 45.934004][ T456] ? loop_remove+0xb0/0xb0 [ 45.938492][ T456] ? __fget_files+0x310/0x370 [ 45.943148][ T456] ? security_file_ioctl+0xb1/0xd0 [ 45.948237][ T456] ? loop_remove+0xb0/0xb0 [ 45.952631][ T456] __se_sys_ioctl+0x115/0x190 [ 45.957443][ T456] __x64_sys_ioctl+0x7b/0x90 [ 45.962108][ T456] do_syscall_64+0x34/0x70 [ 45.966581][ T456] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.972460][ T456] RIP: 0033:0x7f144797e0e9 [ 45.976873][ T456] 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 [ 45.996746][ T456] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.006883][ T456] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 46.015022][ T456] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.023065][ T456] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.031466][ T456] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.039527][ T456] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 46.054137][ T458] FAULT_INJECTION: forcing a failure. [ 46.054137][ T458] name failslab, interval 1, probability 0, space 0, times 0 [ 46.067108][ T458] CPU: 0 PID: 458 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.079604][ T458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.089916][ T458] Call Trace: [ 46.093200][ T458] dump_stack_lvl+0x1e2/0x24b [ 46.097880][ T458] ? panic+0x7d7/0x7d7 [ 46.101939][ T458] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.107573][ T458] ? __kasan_kmalloc+0x9/0x10 [ 46.112489][ T458] ? kobj_map+0x72/0x6f0 [ 46.116706][ T458] ? __device_add_disk+0x6e0/0x11b0 [ 46.123339][ T458] ? device_add_disk+0x2a/0x40 [ 46.128111][ T458] ? loop_control_ioctl+0x564/0x740 [ 46.133550][ T458] ? __se_sys_ioctl+0x115/0x190 [ 46.138640][ T458] ? __x64_sys_ioctl+0x7b/0x90 [ 46.143385][ T458] dump_stack+0x15/0x17 [ 46.147797][ T458] should_fail+0x3c0/0x510 [ 46.152196][ T458] ? kvasprintf_const+0x139/0x180 [ 46.157199][ T458] __should_failslab+0x9f/0xe0 [ 46.161952][ T458] should_failslab+0x9/0x20 [ 46.166452][ T458] __kmalloc_track_caller+0x5f/0x350 [ 46.171725][ T458] kstrdup_const+0x55/0x90 [ 46.176119][ T458] kvasprintf_const+0x139/0x180 [ 46.180955][ T458] kobject_set_name_vargs+0x61/0x120 [ 46.186420][ T458] dev_set_name+0xd1/0x120 [ 46.190815][ T458] ? __kmalloc+0x1f7/0x360 [ 46.195202][ T458] ? get_device+0x30/0x30 [ 46.199602][ T458] ? kobj_map+0x6ad/0x6f0 [ 46.203913][ T458] __device_add_disk+0x733/0x11b0 [ 46.209041][ T458] ? device_add_disk+0x40/0x40 [ 46.213792][ T458] ? vsprintf+0x40/0x40 [ 46.217935][ T458] device_add_disk+0x2a/0x40 [ 46.222503][ T458] loop_add+0x554/0x7b0 [ 46.226650][ T458] loop_control_ioctl+0x564/0x740 [ 46.232053][ T458] ? loop_remove+0xb0/0xb0 [ 46.236642][ T458] ? __fget_files+0x310/0x370 [ 46.241400][ T458] ? security_file_ioctl+0xb1/0xd0 [ 46.246490][ T458] ? loop_remove+0xb0/0xb0 [ 46.251115][ T458] __se_sys_ioctl+0x115/0x190 [ 46.255781][ T458] __x64_sys_ioctl+0x7b/0x90 [ 46.260350][ T458] do_syscall_64+0x34/0x70 [ 46.264751][ T458] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.270618][ T458] RIP: 0033:0x7f144797e0e9 [ 46.275006][ T458] 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 [ 46.294728][ T458] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.303172][ T458] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 46.311218][ T458] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.319183][ T458] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.327137][ T458] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.335087][ T458] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 46.350696][ T460] FAULT_INJECTION: forcing a failure. [ 46.350696][ T460] name failslab, interval 1, probability 0, space 0, times 0 [ 46.363497][ T460] CPU: 0 PID: 460 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.375627][ T460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.385837][ T460] Call Trace: [ 46.389112][ T460] dump_stack_lvl+0x1e2/0x24b [ 46.393991][ T460] ? panic+0x7d7/0x7d7 [ 46.398039][ T460] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.403561][ T460] ? memcpy+0x56/0x70 [ 46.407708][ T460] dump_stack+0x15/0x17 [ 46.411852][ T460] should_fail+0x3c0/0x510 [ 46.416275][ T460] ? device_add+0xbe/0xbd0 [ 46.420784][ T460] __should_failslab+0x9f/0xe0 [ 46.425696][ T460] should_failslab+0x9/0x20 [ 46.430181][ T460] kmem_cache_alloc_trace+0x3a/0x330 [ 46.435444][ T460] ? __kasan_check_write+0x14/0x20 [ 46.440635][ T460] device_add+0xbe/0xbd0 [ 46.444895][ T460] __device_add_disk+0x7c1/0x11b0 [ 46.449912][ T460] ? device_add_disk+0x40/0x40 [ 46.454747][ T460] ? vsprintf+0x40/0x40 [ 46.459206][ T460] device_add_disk+0x2a/0x40 [ 46.464084][ T460] loop_add+0x554/0x7b0 [ 46.468412][ T460] loop_control_ioctl+0x564/0x740 [ 46.473646][ T460] ? loop_remove+0xb0/0xb0 [ 46.478061][ T460] ? __fget_files+0x310/0x370 [ 46.482753][ T460] ? security_file_ioctl+0xb1/0xd0 [ 46.487855][ T460] ? loop_remove+0xb0/0xb0 [ 46.492362][ T460] __se_sys_ioctl+0x115/0x190 [ 46.497023][ T460] __x64_sys_ioctl+0x7b/0x90 [ 46.501785][ T460] do_syscall_64+0x34/0x70 [ 46.506187][ T460] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.512080][ T460] RIP: 0033:0x7f144797e0e9 [ 46.516477][ T460] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.536173][ T460] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.544841][ T460] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 46.552800][ T460] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.560756][ T460] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.568949][ T460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.577258][ T460] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 46.592697][ T462] FAULT_INJECTION: forcing a failure. [ 46.592697][ T462] name failslab, interval 1, probability 0, space 0, times 0 [ 46.607572][ T462] CPU: 1 PID: 462 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.620154][ T462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.630205][ T462] Call Trace: [ 46.633481][ T462] dump_stack_lvl+0x1e2/0x24b [ 46.638149][ T462] ? panic+0x7d7/0x7d7 [ 46.642636][ T462] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.648393][ T462] dump_stack+0x15/0x17 [ 46.652533][ T462] should_fail+0x3c0/0x510 [ 46.657055][ T462] __should_failslab+0x9f/0xe0 [ 46.661832][ T462] should_failslab+0x9/0x20 [ 46.666426][ T462] kmem_cache_alloc+0x3f/0x300 [ 46.671620][ T462] ? __kernfs_new_node+0xdb/0x6e0 [ 46.676639][ T462] __kernfs_new_node+0xdb/0x6e0 [ 46.681506][ T462] ? stack_trace_save+0x12d/0x1f0 [ 46.686725][ T462] ? kernfs_new_node+0x170/0x170 [ 46.692075][ T462] ? stack_trace_snprint+0x100/0x100 [ 46.697957][ T462] ? dput+0x2ce/0x320 [ 46.701946][ T462] ? device_add+0xbe/0xbd0 [ 46.706596][ T462] kernfs_create_dir_ns+0x9b/0x230 [ 46.711908][ T462] sysfs_create_dir_ns+0x181/0x390 [ 46.717792][ T462] ? sysfs_warn_dup+0xa0/0xa0 [ 46.723420][ T462] kobject_add_internal+0x766/0xda0 [ 46.728887][ T462] kobject_add+0x14c/0x210 [ 46.733411][ T462] ? _raw_spin_lock+0xa3/0x1b0 [ 46.738643][ T462] ? kobject_init+0x1e0/0x1e0 [ 46.743820][ T462] ? __kasan_check_write+0x14/0x20 [ 46.749697][ T462] ? mutex_unlock+0x1d/0x40 [ 46.756626][ T462] ? get_device_parent+0x2c5/0x430 [ 46.762347][ T462] device_add+0x3ca/0xbd0 [ 46.767474][ T462] __device_add_disk+0x7c1/0x11b0 [ 46.772497][ T462] ? device_add_disk+0x40/0x40 [ 46.777679][ T462] ? vsprintf+0x40/0x40 [ 46.781825][ T462] device_add_disk+0x2a/0x40 [ 46.787173][ T462] loop_add+0x554/0x7b0 [ 46.791434][ T462] loop_control_ioctl+0x564/0x740 [ 46.796862][ T462] ? loop_remove+0xb0/0xb0 [ 46.801752][ T462] ? __fget_files+0x310/0x370 [ 46.806597][ T462] ? security_file_ioctl+0xb1/0xd0 [ 46.811832][ T462] ? loop_remove+0xb0/0xb0 [ 46.816397][ T462] __se_sys_ioctl+0x115/0x190 [ 46.821277][ T462] __x64_sys_ioctl+0x7b/0x90 [ 46.825868][ T462] do_syscall_64+0x34/0x70 [ 46.830750][ T462] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.836914][ T462] RIP: 0033:0x7f144797e0e9 [ 46.841459][ T462] 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 [ 46.862423][ T462] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.871182][ T462] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 46.879335][ T462] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.887327][ T462] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.895399][ T462] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.903363][ T462] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 46.912227][ T462] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 46.928030][ T464] FAULT_INJECTION: forcing a failure. [ 46.928030][ T464] name failslab, interval 1, probability 0, space 0, times 0 [ 46.941977][ T464] CPU: 0 PID: 464 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.954827][ T464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.965376][ T464] Call Trace: [ 46.969186][ T464] dump_stack_lvl+0x1e2/0x24b [ 46.973844][ T464] ? panic+0x7d7/0x7d7 [ 46.978013][ T464] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.983613][ T464] ? memcpy+0x56/0x70 [ 46.988195][ T464] dump_stack+0x15/0x17 [ 46.993321][ T464] should_fail+0x3c0/0x510 [ 46.998138][ T464] ? device_add+0xbe/0xbd0 [ 47.002665][ T464] __should_failslab+0x9f/0xe0 [ 47.007821][ T464] should_failslab+0x9/0x20 [ 47.012694][ T464] kmem_cache_alloc_trace+0x3a/0x330 [ 47.017986][ T464] ? __kasan_check_write+0x14/0x20 [ 47.023166][ T464] device_add+0xbe/0xbd0 [ 47.027474][ T464] __device_add_disk+0x7c1/0x11b0 [ 47.032532][ T464] ? device_add_disk+0x40/0x40 [ 47.037863][ T464] ? vsprintf+0x40/0x40 [ 47.042002][ T464] device_add_disk+0x2a/0x40 [ 47.046570][ T464] loop_add+0x554/0x7b0 [ 47.050851][ T464] loop_control_ioctl+0x564/0x740 [ 47.055861][ T464] ? loop_remove+0xb0/0xb0 [ 47.060498][ T464] ? __fget_files+0x310/0x370 [ 47.065276][ T464] ? security_file_ioctl+0xb1/0xd0 [ 47.070552][ T464] ? loop_remove+0xb0/0xb0 [ 47.074962][ T464] __se_sys_ioctl+0x115/0x190 [ 47.079807][ T464] __x64_sys_ioctl+0x7b/0x90 [ 47.084402][ T464] do_syscall_64+0x34/0x70 [ 47.088971][ T464] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.094944][ T464] RIP: 0033:0x7f144797e0e9 [ 47.099335][ T464] 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 [ 47.119193][ T464] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.127735][ T464] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 47.135684][ T464] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.143826][ T464] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.151776][ T464] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.159741][ T464] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 47.174907][ T466] FAULT_INJECTION: forcing a failure. [ 47.174907][ T466] name failslab, interval 1, probability 0, space 0, times 0 [ 47.187826][ T466] CPU: 0 PID: 466 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 47.199947][ T466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.210076][ T466] Call Trace: [ 47.213448][ T466] dump_stack_lvl+0x1e2/0x24b [ 47.218104][ T466] ? panic+0x7d7/0x7d7 [ 47.222160][ T466] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.228293][ T466] dump_stack+0x15/0x17 [ 47.232433][ T466] should_fail+0x3c0/0x510 [ 47.236828][ T466] __should_failslab+0x9f/0xe0 [ 47.241603][ T466] should_failslab+0x9/0x20 [ 47.246309][ T466] kmem_cache_alloc+0x3f/0x300 [ 47.251169][ T466] ? __kernfs_new_node+0xdb/0x6e0 [ 47.256329][ T466] __kernfs_new_node+0xdb/0x6e0 [ 47.261282][ T466] ? stack_trace_save+0x12d/0x1f0 [ 47.266832][ T466] ? kernfs_new_node+0x170/0x170 [ 47.271940][ T466] ? stack_trace_snprint+0x100/0x100 [ 47.279224][ T466] ? dput+0x2ce/0x320 [ 47.283263][ T466] ? device_add+0xbe/0xbd0 [ 47.287686][ T466] kernfs_create_dir_ns+0x9b/0x230 [ 47.292804][ T466] sysfs_create_dir_ns+0x181/0x390 [ 47.297987][ T466] ? sysfs_warn_dup+0xa0/0xa0 [ 47.302642][ T466] kobject_add_internal+0x766/0xda0 [ 47.307818][ T466] kobject_add+0x14c/0x210 [ 47.312211][ T466] ? _raw_spin_lock+0xa3/0x1b0 [ 47.316950][ T466] ? kobject_init+0x1e0/0x1e0 [ 47.321635][ T466] ? __kasan_check_write+0x14/0x20 [ 47.326870][ T466] ? mutex_unlock+0x1d/0x40 [ 47.331452][ T466] ? get_device_parent+0x2c5/0x430 [ 47.336734][ T466] device_add+0x3ca/0xbd0 [ 47.341296][ T466] __device_add_disk+0x7c1/0x11b0 [ 47.346532][ T466] ? device_add_disk+0x40/0x40 [ 47.351422][ T466] ? vsprintf+0x40/0x40 [ 47.355559][ T466] device_add_disk+0x2a/0x40 [ 47.360128][ T466] loop_add+0x554/0x7b0 [ 47.364276][ T466] loop_control_ioctl+0x564/0x740 [ 47.369287][ T466] ? loop_remove+0xb0/0xb0 [ 47.374131][ T466] ? __fget_files+0x310/0x370 [ 47.379321][ T466] ? security_file_ioctl+0xb1/0xd0 [ 47.384419][ T466] ? loop_remove+0xb0/0xb0 [ 47.388818][ T466] __se_sys_ioctl+0x115/0x190 [ 47.393487][ T466] __x64_sys_ioctl+0x7b/0x90 [ 47.398163][ T466] do_syscall_64+0x34/0x70 [ 47.402557][ T466] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.408427][ T466] RIP: 0033:0x7f144797e0e9 [ 47.413006][ T466] 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 [ 47.433488][ T466] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.442404][ T466] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 47.450681][ T466] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.459258][ T466] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.467325][ T466] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.475289][ T466] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 47.484567][ T466] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 47.498478][ T468] FAULT_INJECTION: forcing a failure. [ 47.498478][ T468] name failslab, interval 1, probability 0, space 0, times 0 [ 47.511189][ T468] CPU: 1 PID: 468 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 47.523309][ T468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.533339][ T468] Call Trace: [ 47.536616][ T468] dump_stack_lvl+0x1e2/0x24b [ 47.541266][ T468] ? panic+0x7d7/0x7d7 [ 47.545308][ T468] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.550740][ T468] ? memcpy+0x56/0x70 [ 47.554696][ T468] dump_stack+0x15/0x17 [ 47.558833][ T468] should_fail+0x3c0/0x510 [ 47.563269][ T468] ? device_add+0xbe/0xbd0 [ 47.567667][ T468] __should_failslab+0x9f/0xe0 [ 47.572501][ T468] should_failslab+0x9/0x20 [ 47.576976][ T468] kmem_cache_alloc_trace+0x3a/0x330 [ 47.582518][ T468] ? __kasan_check_write+0x14/0x20 [ 47.587601][ T468] device_add+0xbe/0xbd0 [ 47.591940][ T468] __device_add_disk+0x7c1/0x11b0 [ 47.597109][ T468] ? device_add_disk+0x40/0x40 [ 47.602103][ T468] ? vsprintf+0x40/0x40 [ 47.606231][ T468] device_add_disk+0x2a/0x40 [ 47.610813][ T468] loop_add+0x554/0x7b0 [ 47.614970][ T468] loop_control_ioctl+0x564/0x740 [ 47.620063][ T468] ? loop_remove+0xb0/0xb0 [ 47.624542][ T468] ? __fget_files+0x310/0x370 [ 47.629399][ T468] ? security_file_ioctl+0xb1/0xd0 [ 47.634499][ T468] ? loop_remove+0xb0/0xb0 [ 47.638908][ T468] __se_sys_ioctl+0x115/0x190 [ 47.643935][ T468] __x64_sys_ioctl+0x7b/0x90 [ 47.648518][ T468] do_syscall_64+0x34/0x70 [ 47.652934][ T468] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.658807][ T468] RIP: 0033:0x7f144797e0e9 [ 47.663197][ T468] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.683100][ T468] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.691492][ T468] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 47.699459][ T468] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.707409][ T468] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.715376][ T468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.723330][ T468] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 47.740205][ T470] FAULT_INJECTION: forcing a failure. [ 47.740205][ T470] name failslab, interval 1, probability 0, space 0, times 0 [ 47.753114][ T470] CPU: 1 PID: 470 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 47.765253][ T470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.775283][ T470] Call Trace: [ 47.778566][ T470] dump_stack_lvl+0x1e2/0x24b [ 47.783232][ T470] ? panic+0x7d7/0x7d7 [ 47.787320][ T470] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.792927][ T470] ? memcpy+0x56/0x70 [ 47.796984][ T470] dump_stack+0x15/0x17 [ 47.801118][ T470] should_fail+0x3c0/0x510 [ 47.805506][ T470] ? device_add+0xbe/0xbd0 [ 47.809899][ T470] __should_failslab+0x9f/0xe0 [ 47.814638][ T470] should_failslab+0x9/0x20 [ 47.819147][ T470] kmem_cache_alloc_trace+0x3a/0x330 [ 47.824418][ T470] ? __kasan_check_write+0x14/0x20 [ 47.829531][ T470] device_add+0xbe/0xbd0 [ 47.833747][ T470] __device_add_disk+0x7c1/0x11b0 [ 47.838917][ T470] ? device_add_disk+0x40/0x40 [ 47.843776][ T470] ? vsprintf+0x40/0x40 [ 47.848176][ T470] device_add_disk+0x2a/0x40 [ 47.853244][ T470] loop_add+0x554/0x7b0 [ 47.857379][ T470] loop_control_ioctl+0x564/0x740 [ 47.862386][ T470] ? loop_remove+0xb0/0xb0 [ 47.866776][ T470] ? __fget_files+0x310/0x370 [ 47.871426][ T470] ? security_file_ioctl+0xb1/0xd0 [ 47.876507][ T470] ? loop_remove+0xb0/0xb0 [ 47.880896][ T470] __se_sys_ioctl+0x115/0x190 [ 47.885544][ T470] __x64_sys_ioctl+0x7b/0x90 [ 47.890216][ T470] do_syscall_64+0x34/0x70 [ 47.894621][ T470] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.901095][ T470] RIP: 0033:0x7f144797e0e9 [ 47.906094][ T470] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.925766][ T470] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.934158][ T470] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 47.942113][ T470] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.950333][ T470] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 2022/05/26 15:33:18 executed programs: 29 [ 47.958521][ T470] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.966487][ T470] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 47.981340][ T472] FAULT_INJECTION: forcing a failure. [ 47.981340][ T472] name failslab, interval 1, probability 0, space 0, times 0 [ 47.994154][ T472] CPU: 1 PID: 472 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.006293][ T472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.016527][ T472] Call Trace: [ 48.019794][ T472] dump_stack_lvl+0x1e2/0x24b [ 48.024457][ T472] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.030328][ T472] dump_stack+0x15/0x17 [ 48.034463][ T472] should_fail+0x3c0/0x510 [ 48.038880][ T472] ? __kernfs_new_node+0x99/0x6e0 [ 48.043891][ T472] __should_failslab+0x9f/0xe0 [ 48.048739][ T472] should_failslab+0x9/0x20 [ 48.053217][ T472] __kmalloc_track_caller+0x5f/0x350 [ 48.058506][ T472] ? __kernel_text_address+0x9a/0x110 [ 48.063937][ T472] ? unwind_get_return_address+0x4c/0x90 [ 48.069722][ T472] kstrdup_const+0x55/0x90 [ 48.074113][ T472] __kernfs_new_node+0x99/0x6e0 [ 48.078962][ T472] ? stack_trace_save+0x12d/0x1f0 [ 48.083959][ T472] ? kernfs_new_node+0x170/0x170 [ 48.088876][ T472] ? stack_trace_snprint+0x100/0x100 [ 48.094132][ T472] ? dput+0x2ce/0x320 [ 48.098104][ T472] ? device_add+0xbe/0xbd0 [ 48.102525][ T472] kernfs_create_dir_ns+0x9b/0x230 [ 48.107748][ T472] sysfs_create_dir_ns+0x181/0x390 [ 48.112846][ T472] ? sysfs_warn_dup+0xa0/0xa0 [ 48.117837][ T472] kobject_add_internal+0x766/0xda0 [ 48.123047][ T472] kobject_add+0x14c/0x210 [ 48.127557][ T472] ? _raw_spin_lock+0xa3/0x1b0 [ 48.132304][ T472] ? kobject_init+0x1e0/0x1e0 [ 48.137160][ T472] ? __kasan_check_write+0x14/0x20 [ 48.142268][ T472] ? mutex_unlock+0x1d/0x40 [ 48.146784][ T472] ? get_device_parent+0x2c5/0x430 [ 48.151895][ T472] device_add+0x3ca/0xbd0 [ 48.156225][ T472] __device_add_disk+0x7c1/0x11b0 [ 48.161486][ T472] ? device_add_disk+0x40/0x40 [ 48.166249][ T472] ? vsprintf+0x40/0x40 [ 48.170535][ T472] device_add_disk+0x2a/0x40 [ 48.175191][ T472] loop_add+0x554/0x7b0 [ 48.179324][ T472] loop_control_ioctl+0x564/0x740 [ 48.184332][ T472] ? loop_remove+0xb0/0xb0 [ 48.188740][ T472] ? __fget_files+0x310/0x370 [ 48.193399][ T472] ? security_file_ioctl+0xb1/0xd0 [ 48.198494][ T472] ? loop_remove+0xb0/0xb0 [ 48.202887][ T472] __se_sys_ioctl+0x115/0x190 [ 48.207540][ T472] __x64_sys_ioctl+0x7b/0x90 [ 48.212106][ T472] do_syscall_64+0x34/0x70 [ 48.216522][ T472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.222412][ T472] RIP: 0033:0x7f144797e0e9 [ 48.227116][ T472] 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 [ 48.247008][ T472] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.255405][ T472] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 48.263360][ T472] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.271429][ T472] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.279663][ T472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.287660][ T472] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 48.296027][ T472] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 48.311714][ T474] FAULT_INJECTION: forcing a failure. [ 48.311714][ T474] name failslab, interval 1, probability 0, space 0, times 0 [ 48.324367][ T474] CPU: 1 PID: 474 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.336607][ T474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.346640][ T474] Call Trace: [ 48.349928][ T474] dump_stack_lvl+0x1e2/0x24b [ 48.354594][ T474] ? panic+0x7d7/0x7d7 [ 48.358749][ T474] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.364192][ T474] ? __kasan_kmalloc+0x9/0x10 [ 48.369382][ T474] ? kobj_map+0x72/0x6f0 [ 48.373604][ T474] ? __device_add_disk+0x6e0/0x11b0 [ 48.378893][ T474] ? device_add_disk+0x2a/0x40 [ 48.383780][ T474] ? loop_control_ioctl+0x564/0x740 [ 48.388976][ T474] ? __se_sys_ioctl+0x115/0x190 [ 48.394104][ T474] ? __x64_sys_ioctl+0x7b/0x90 [ 48.398866][ T474] dump_stack+0x15/0x17 [ 48.403122][ T474] should_fail+0x3c0/0x510 [ 48.407527][ T474] ? kvasprintf_const+0x139/0x180 [ 48.412545][ T474] __should_failslab+0x9f/0xe0 [ 48.417289][ T474] should_failslab+0x9/0x20 [ 48.421862][ T474] __kmalloc_track_caller+0x5f/0x350 [ 48.427124][ T474] kstrdup_const+0x55/0x90 [ 48.431521][ T474] kvasprintf_const+0x139/0x180 [ 48.436686][ T474] kobject_set_name_vargs+0x61/0x120 [ 48.442057][ T474] dev_set_name+0xd1/0x120 [ 48.446458][ T474] ? __kmalloc+0x1f7/0x360 [ 48.450864][ T474] ? get_device+0x30/0x30 [ 48.455400][ T474] ? kobj_map+0x6ad/0x6f0 [ 48.459844][ T474] __device_add_disk+0x733/0x11b0 [ 48.464850][ T474] ? device_add_disk+0x40/0x40 [ 48.469605][ T474] ? vsprintf+0x40/0x40 [ 48.473759][ T474] device_add_disk+0x2a/0x40 [ 48.478326][ T474] loop_add+0x554/0x7b0 [ 48.482565][ T474] loop_control_ioctl+0x564/0x740 [ 48.487593][ T474] ? loop_remove+0xb0/0xb0 [ 48.491998][ T474] ? __fget_files+0x310/0x370 [ 48.496661][ T474] ? security_file_ioctl+0xb1/0xd0 [ 48.501762][ T474] ? loop_remove+0xb0/0xb0 [ 48.506256][ T474] __se_sys_ioctl+0x115/0x190 [ 48.511107][ T474] __x64_sys_ioctl+0x7b/0x90 [ 48.515676][ T474] do_syscall_64+0x34/0x70 [ 48.520067][ T474] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.525929][ T474] RIP: 0033:0x7f144797e0e9 [ 48.530321][ T474] 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 [ 48.550218][ T474] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.558612][ T474] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 48.566575][ T474] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.574773][ T474] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.583020][ T474] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.590973][ T474] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 48.605772][ T476] FAULT_INJECTION: forcing a failure. [ 48.605772][ T476] name failslab, interval 1, probability 0, space 0, times 0 [ 48.618613][ T476] CPU: 1 PID: 476 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.630841][ T476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.640874][ T476] Call Trace: [ 48.644152][ T476] dump_stack_lvl+0x1e2/0x24b [ 48.648933][ T476] ? panic+0x7d7/0x7d7 [ 48.652989][ T476] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.658429][ T476] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 48.663428][ T476] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 48.668622][ T476] dump_stack+0x15/0x17 [ 48.672873][ T476] should_fail+0x3c0/0x510 [ 48.677392][ T476] ? kobj_map+0x72/0x6f0 [ 48.681630][ T476] __should_failslab+0x9f/0xe0 [ 48.686386][ T476] should_failslab+0x9/0x20 [ 48.691140][ T476] __kmalloc+0x60/0x360 [ 48.695480][ T476] ? __device_add_disk+0x585/0x11b0 [ 48.700751][ T476] kobj_map+0x72/0x6f0 [ 48.704832][ T476] ? exact_match+0x20/0x20 [ 48.709237][ T476] ? bdev_check_media_change+0x4c0/0x4c0 [ 48.714850][ T476] __device_add_disk+0x6e0/0x11b0 [ 48.719943][ T476] ? device_add_disk+0x40/0x40 [ 48.724780][ T476] ? vsprintf+0x40/0x40 [ 48.729005][ T476] device_add_disk+0x2a/0x40 [ 48.733680][ T476] loop_add+0x554/0x7b0 [ 48.737833][ T476] loop_control_ioctl+0x564/0x740 [ 48.742836][ T476] ? loop_remove+0xb0/0xb0 [ 48.747233][ T476] ? __fget_files+0x310/0x370 [ 48.752068][ T476] ? security_file_ioctl+0xb1/0xd0 [ 48.757343][ T476] ? loop_remove+0xb0/0xb0 [ 48.761735][ T476] __se_sys_ioctl+0x115/0x190 [ 48.766387][ T476] __x64_sys_ioctl+0x7b/0x90 [ 48.770998][ T476] do_syscall_64+0x34/0x70 [ 48.775403][ T476] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.781266][ T476] RIP: 0033:0x7f144797e0e9 [ 48.785656][ T476] 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 [ 48.805324][ T476] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.813721][ T476] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 48.821672][ T476] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.829713][ T476] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.837760][ T476] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.846509][ T476] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 48.876977][ T411] ------------[ cut here ]------------ [ 48.877622][ T478] FAULT_INJECTION: forcing a failure. [ 48.877622][ T478] name failslab, interval 1, probability 0, space 0, times 0 [ 48.882474][ T411] refcount_t: saturated; leaking memory. [ 48.895295][ T478] CPU: 1 PID: 478 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.902063][ T411] WARNING: CPU: 0 PID: 411 at lib/refcount.c:22 refcount_warn_saturate+0x129/0x1b0 [ 48.912930][ T478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.912934][ T478] Call Trace: [ 48.912949][ T478] dump_stack_lvl+0x1e2/0x24b [ 48.912958][ T478] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.912967][ T478] dump_stack+0x15/0x17 [ 48.912975][ T478] should_fail+0x3c0/0x510 [ 48.912984][ T478] ? __kernfs_new_node+0x99/0x6e0 [ 48.912994][ T478] __should_failslab+0x9f/0xe0 [ 48.913002][ T478] should_failslab+0x9/0x20 [ 48.913014][ T478] __kmalloc_track_caller+0x5f/0x350 [ 48.913023][ T478] ? __kernel_text_address+0x9a/0x110 [ 48.913034][ T478] ? unwind_get_return_address+0x4c/0x90 [ 48.913044][ T478] kstrdup_const+0x55/0x90 [ 48.913053][ T478] __kernfs_new_node+0x99/0x6e0 [ 48.913062][ T478] ? stack_trace_save+0x12d/0x1f0 [ 48.913078][ T478] ? kernfs_new_node+0x170/0x170 [ 48.922736][ T411] Modules linked in: [ 48.932875][ T478] ? stack_trace_snprint+0x100/0x100 [ 48.932885][ T478] ? dput+0x2ce/0x320 [ 48.932894][ T478] ? device_add+0xbe/0xbd0 [ 48.932903][ T478] kernfs_create_dir_ns+0x9b/0x230 [ 48.932913][ T478] sysfs_create_dir_ns+0x181/0x390 [ 48.932921][ T478] ? sysfs_warn_dup+0xa0/0xa0 [ 48.932932][ T478] kobject_add_internal+0x766/0xda0 [ 48.932942][ T478] kobject_add+0x14c/0x210 [ 48.932951][ T478] ? _raw_spin_lock+0xa3/0x1b0 [ 48.932960][ T478] ? kobject_init+0x1e0/0x1e0 [ 48.932971][ T478] ? __kasan_check_write+0x14/0x20 [ 48.932980][ T478] ? mutex_unlock+0x1d/0x40 [ 48.932998][ T478] ? get_device_parent+0x2c5/0x430 [ 48.936504][ T411] [ 48.941176][ T478] device_add+0x3ca/0xbd0 [ 48.941187][ T478] __device_add_disk+0x7c1/0x11b0 [ 48.941198][ T478] ? device_add_disk+0x40/0x40 [ 48.941207][ T478] ? vsprintf+0x40/0x40 [ 48.941218][ T478] device_add_disk+0x2a/0x40 [ 48.941229][ T478] loop_add+0x554/0x7b0 [ 48.941245][ T478] loop_control_ioctl+0x564/0x740 [ 48.946764][ T411] CPU: 0 PID: 411 Comm: udevd Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.950900][ T478] ? loop_remove+0xb0/0xb0 [ 48.950910][ T478] ? __fget_files+0x310/0x370 [ 48.950922][ T478] ? security_file_ioctl+0xb1/0xd0 [ 48.950931][ T478] ? loop_remove+0xb0/0xb0 [ 48.950941][ T478] __se_sys_ioctl+0x115/0x190 [ 48.950951][ T478] __x64_sys_ioctl+0x7b/0x90 [ 48.950960][ T478] do_syscall_64+0x34/0x70 [ 48.950976][ T478] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.955375][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.960358][ T478] RIP: 0033:0x7f144797e0e9 [ 48.960369][ T478] 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 [ 48.960375][ T478] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.960387][ T478] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 48.960393][ T478] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.960400][ T478] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.960407][ T478] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.960414][ T478] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 48.960863][ T478] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 48.965634][ T411] RIP: 0010:refcount_warn_saturate+0x129/0x1b0 [ 49.252959][ T411] Code: c7 40 c1 43 85 31 c0 e8 75 22 f2 fe 0f 0b eb bf e8 0c e8 1f ff c6 05 97 6c 0f 04 01 48 c7 c7 a0 bf 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 c0 43 [ 49.259419][ T480] FAULT_INJECTION: forcing a failure. [ 49.259419][ T480] name failslab, interval 1, probability 0, space 0, times 0 [ 49.273963][ T411] RSP: 0018:ffffc90000ce7670 EFLAGS: 00010246 [ 49.285508][ T480] CPU: 1 PID: 480 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 49.291362][ T411] RAX: 8fcc05fe89a2a200 RBX: 0000000000000001 RCX: ffff88810c97bb40 [ 49.303414][ T480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.303419][ T480] Call Trace: [ 49.303437][ T480] dump_stack_lvl+0x1e2/0x24b [ 49.303447][ T480] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.303455][ T480] dump_stack+0x15/0x17 [ 49.303463][ T480] should_fail+0x3c0/0x510 [ 49.303482][ T480] ? __kernfs_new_node+0x99/0x6e0 [ 49.311771][ T411] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 49.321691][ T480] __should_failslab+0x9f/0xe0 [ 49.321702][ T480] should_failslab+0x9/0x20 [ 49.321719][ T480] __kmalloc_track_caller+0x5f/0x350 [ 49.324980][ T411] RBP: ffffc90000ce7680 R08: ffffffff8153a998 R09: ffffed103ee4a5d8 [ 49.329635][ T480] ? __kernel_text_address+0x9a/0x110 [ 49.329652][ T480] ? unwind_get_return_address+0x4c/0x90 [ 49.329661][ T480] kstrdup_const+0x55/0x90 [ 49.329669][ T480] __kernfs_new_node+0x99/0x6e0 [ 49.329684][ T480] ? stack_trace_save+0x12d/0x1f0 [ 49.335112][ T411] R10: ffffed103ee4a5d8 R11: 1ffff1103ee4a5d7 R12: 00000000c0000001 [ 49.339758][ T480] ? kernfs_new_node+0x170/0x170 [ 49.339766][ T480] ? stack_trace_snprint+0x100/0x100 [ 49.339773][ T480] ? dput+0x2ce/0x320 [ 49.339788][ T480] ? device_add+0xbe/0xbd0 [ 49.344174][ T411] R13: ffff88810f3c1000 R14: 0000000000000001 R15: ffff88810f3c1000 [ 49.349165][ T480] kernfs_create_dir_ns+0x9b/0x230 [ 49.349175][ T480] sysfs_create_dir_ns+0x181/0x390 [ 49.349189][ T480] ? sysfs_warn_dup+0xa0/0xa0 [ 49.454403][ T480] kobject_add_internal+0x766/0xda0 [ 49.459577][ T480] kobject_add+0x14c/0x210 [ 49.463967][ T480] ? _raw_spin_lock+0xa3/0x1b0 [ 49.468706][ T480] ? kobject_init+0x1e0/0x1e0 [ 49.473374][ T480] ? __kasan_check_write+0x14/0x20 [ 49.478458][ T480] ? mutex_unlock+0x1d/0x40 [ 49.482937][ T480] ? get_device_parent+0x2c5/0x430 [ 49.488039][ T480] device_add+0x3ca/0xbd0 [ 49.492346][ T480] __device_add_disk+0x7c1/0x11b0 [ 49.497739][ T480] ? device_add_disk+0x40/0x40 [ 49.502500][ T480] ? vsprintf+0x40/0x40 [ 49.506631][ T480] device_add_disk+0x2a/0x40 [ 49.511211][ T480] loop_add+0x554/0x7b0 [ 49.515566][ T480] loop_control_ioctl+0x564/0x740 [ 49.520764][ T480] ? loop_remove+0xb0/0xb0 [ 49.525161][ T480] ? __fget_files+0x310/0x370 [ 49.529904][ T480] ? security_file_ioctl+0xb1/0xd0 [ 49.534991][ T480] ? loop_remove+0xb0/0xb0 [ 49.539380][ T480] __se_sys_ioctl+0x115/0x190 [ 49.544051][ T480] __x64_sys_ioctl+0x7b/0x90 [ 49.549223][ T480] do_syscall_64+0x34/0x70 [ 49.553638][ T480] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.559805][ T480] RIP: 0033:0x7f144797e0e9 [ 49.564640][ T480] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 49.584418][ T480] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.592928][ T480] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9 [ 49.600901][ T480] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.608887][ T480] RBP: 00007f14478f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.617284][ T480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 49.625433][ T480] R13: 00007ffd00a6533f R14: 00007f14478f4300 R15: 0000000000022000 [ 49.635261][ T411] FS: 00007f07ef974840(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 49.635865][ T480] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 49.644669][ T411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.660980][ T411] CR2: 000056022880c098 CR3: 000000010d6e3000 CR4: 00000000003506b0 [ 49.667104][ T482] FAULT_INJECTION: forcing a failure. [ 49.667104][ T482] name failslab, interval 1, probability 0, space 0, times 0 [ 49.670102][ T411] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.681736][ T482] CPU: 1 PID: 482 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 49.689883][ T411] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.701783][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.701787][ T482] Call Trace: [ 49.701803][ T482] dump_stack_lvl+0x1e2/0x24b [ 49.701811][ T482] ? panic+0x7d7/0x7d7 [ 49.701818][ T482] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.701833][ T482] dump_stack+0x15/0x17 [ 49.710110][ T411] Call Trace: [ 49.720078][ T482] should_fail+0x3c0/0x510 [ 49.720090][ T482] __should_failslab+0x9f/0xe0 [ 49.720100][ T482] should_failslab+0x9/0x20 [ 49.720116][ T482] kmem_cache_alloc+0x3f/0x300 [ 49.723979][ T411] bdi_get+0x83/0x90 [ 49.728035][ T482] ? __kernfs_new_node+0xdb/0x6e0 [ 49.728044][ T482] __kernfs_new_node+0xdb/0x6e0 [ 49.728053][ T482] ? stack_trace_save+0x12d/0x1f0 [ 49.728068][ T482] ? kernfs_new_node+0x170/0x170 [ 49.732443][ T411] __blkdev_get+0x120c/0x1360 [ 49.737577][ T482] ? stack_trace_snprint+0x100/0x100 [ 49.737586][ T482] ? dput+0x2ce/0x320 [ 49.737596][ T482] ? device_add+0xbe/0xbd0 [ 49.737611][ T482] kernfs_create_dir_ns+0x9b/0x230 [ 49.742112][ T411] ? bdev_test+0xa0/0xa0 [ 49.745087][ T482] sysfs_create_dir_ns+0x181/0x390 [ 49.749654][ T411] ? blkdev_bio_end_io+0x470/0x470 [ 49.754240][ T482] ? sysfs_warn_dup+0xa0/0xa0 [ 49.758982][ T411] ? selinux_file_receive+0x140/0x140 [ 49.763902][ T482] kobject_add_internal+0x766/0xda0 [ 49.768005][ T411] blkdev_open+0x21a/0x450 [ 49.772851][ T482] kobject_add+0x14c/0x210 [ 49.777841][ T411] ? block_ioctl+0xf0/0xf0 [ 49.782691][ T482] ? _raw_spin_lock+0xa3/0x1b0 [ 49.788608][ T411] do_dentry_open+0x7a2/0x1090 [ 49.792255][ T482] ? kobject_init+0x1e0/0x1e0 [ 49.797759][ T411] vfs_open+0x73/0x80 [ 49.801585][ T482] ? __kasan_check_write+0x14/0x20 [ 49.806061][ T411] path_openat+0x2638/0x2fd0 [ 49.811138][ T482] ? mutex_unlock+0x1d/0x40 [ 49.811147][ T482] ? get_device_parent+0x2c5/0x430 [ 49.811155][ T482] device_add+0x3ca/0xbd0 [ 49.811164][ T482] __device_add_disk+0x7c1/0x11b0 [ 49.811173][ T482] ? device_add_disk+0x40/0x40 [ 49.811188][ T482] ? vsprintf+0x40/0x40 [ 49.816043][ T411] ? __kasan_slab_alloc+0xb2/0xe0 [ 49.820566][ T482] device_add_disk+0x2a/0x40 [ 49.820577][ T482] loop_add+0x554/0x7b0 [ 49.820586][ T482] loop_control_ioctl+0x564/0x740 [ 49.820601][ T482] ? loop_remove+0xb0/0xb0 [ 49.825965][ T411] ? do_filp_open+0x440/0x440 [ 49.830333][ T482] ? __fget_files+0x310/0x370 [ 49.830344][ T482] ? security_file_ioctl+0xb1/0xd0 [ 49.830353][ T482] ? loop_remove+0xb0/0xb0 [ 49.830367][ T482] __se_sys_ioctl+0x115/0x190 [ 49.835827][ T411] do_filp_open+0x200/0x440 [ 49.840881][ T482] __x64_sys_ioctl+0x7b/0x90 [ 49.840891][ T482] do_syscall_64+0x34/0x70 [ 49.840907][ T482] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.845389][ T411] ? vfs_tmpfile+0x230/0x230 [ 49.849773][ T482] RIP: 0033:0x7f144797e0e9 [ 49.849783][ T482] 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 [ 49.849795][ T482] RSP: 002b:00007f14478f4168 EFLAGS: 00000246 [ 49.854781][ T411] ? get_unused_fd_flags+0x95/0xa0 [ 49.858913][ T482] ORIG_RAX: 0000000000000010 [ 49.858921][ T482] RAX: ffffffffffffffda RBX: 00007f1447a90f60 RCX: 00007f144797e0e9