0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 203.055019][ T6581] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 203.055029][ T6581] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 203.055039][ T6581] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 203.055066][ T6581]
[ 203.309419][ T6583] FAULT_INJECTION: forcing a failure.
[ 203.309419][ T6583] name failslab, interval 1, probability 0, space 0, times 0
[ 203.325169][ T6583] CPU: 1 UID: 0 PID: 6583 Comm: syz.0.221 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 203.325195][ T6583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 203.325206][ T6583] Call Trace:
[ 203.325214][ T6583]
[ 203.325222][ T6583] dump_stack_lvl+0x241/0x360
[ 203.325253][ T6583] ? __pfx_dump_stack_lvl+0x10/0x10
[ 203.325276][ T6583] ? __pfx__printk+0x10/0x10
[ 203.325304][ T6583] ? __pfx___might_resched+0x10/0x10
[ 203.325329][ T6583] should_fail_ex+0x424/0x570
[ 203.325353][ T6583] should_failslab+0xac/0x100
[ 203.325378][ T6583] kmem_cache_alloc_noprof+0x78/0x390
[ 203.325400][ T6583] ? __kernfs_new_node+0xdf/0x890
[ 203.325423][ T6583] __kernfs_new_node+0xdf/0x890
[ 203.325443][ T6583] ? __lock_acquire+0xad5/0xd80
[ 203.325466][ T6583] ? __pfx___kernfs_new_node+0x10/0x10
[ 203.325495][ T6583] ? kernfs_root+0x1c/0x230
[ 203.325513][ T6583] ? kernfs_root+0x1c/0x230
[ 203.325542][ T6583] kernfs_new_node+0x114/0x220
[ 203.325565][ T6583] kernfs_create_dir_ns+0x43/0x120
[ 203.325588][ T6583] sysfs_create_dir_ns+0x1a2/0x3f0
[ 203.325609][ T6583] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 203.325635][ T6583] kobject_add_internal+0x435/0x8d0
[ 203.325667][ T6583] kobject_add+0x15b/0x230
[ 203.325691][ T6583] ? kobject_put+0x43d/0x480
[ 203.325713][ T6583] ? __pfx_kobject_add+0x10/0x10
[ 203.325736][ T6583] ? bus_get_dev_root+0x127/0x160
[ 203.325757][ T6583] ? get_device_parent+0x405/0x410
[ 203.325775][ T6583] ? device_add+0x318/0xbf0
[ 203.325797][ T6583] device_add+0x4e5/0xbf0
[ 203.325818][ T6583] ? iommufd_test+0x2efb/0x56a0
[ 203.325839][ T6583] iommufd_test+0x3350/0x56a0
[ 203.325869][ T6583] ? __pfx_iommufd_test+0x10/0x10
[ 203.325898][ T6583] ? __lock_acquire+0xad5/0xd80
[ 203.325948][ T6583] iommufd_fops_ioctl+0x4fc/0x610
[ 203.325975][ T6583] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 203.326003][ T6583] ? __fget_files+0x2a/0x420
[ 203.326024][ T6583] ? __fget_files+0x2a/0x420
[ 203.326044][ T6583] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 203.326069][ T6583] __se_sys_ioctl+0xf1/0x160
[ 203.326092][ T6583] do_syscall_64+0xf3/0x230
[ 203.326114][ T6583] ? clear_bhb_loop+0x45/0xa0
[ 203.326134][ T6583] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 203.326151][ T6583] RIP: 0033:0x7f9b9698d169
[ 203.326167][ T6583] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 203.326181][ T6583] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 203.326201][ T6583] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 203.326213][ T6583] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 203.326224][ T6583] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 203.326235][ T6583] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 203.326246][ T6583] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 203.326272][ T6583]
[ 203.326299][ T6583] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 203.753543][ T6585] FAULT_INJECTION: forcing a failure.
[ 203.753543][ T6585] name failslab, interval 1, probability 0, space 0, times 0
[ 203.769661][ T6585] CPU: 1 UID: 0 PID: 6585 Comm: syz.0.222 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 203.769690][ T6585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 203.769701][ T6585] Call Trace:
[ 203.769709][ T6585]
[ 203.769717][ T6585] dump_stack_lvl+0x241/0x360
[ 203.769750][ T6585] ? __pfx_dump_stack_lvl+0x10/0x10
[ 203.769774][ T6585] ? __pfx__printk+0x10/0x10
[ 203.769812][ T6585] ? __pfx___might_resched+0x10/0x10
[ 203.769837][ T6585] should_fail_ex+0x424/0x570
[ 203.769862][ T6585] should_failslab+0xac/0x100
[ 203.769888][ T6585] kmem_cache_alloc_noprof+0x78/0x390
[ 203.769910][ T6585] ? __kernfs_new_node+0xdf/0x890
[ 203.769935][ T6585] __kernfs_new_node+0xdf/0x890
[ 203.769953][ T6585] ? __lock_acquire+0xad5/0xd80
[ 203.769978][ T6585] ? __pfx___kernfs_new_node+0x10/0x10
[ 203.770005][ T6585] ? kernfs_root+0x1c/0x230
[ 203.770024][ T6585] ? kernfs_root+0x1c/0x230
[ 203.770044][ T6585] kernfs_new_node+0x114/0x220
[ 203.770068][ T6585] kernfs_create_link+0xa5/0x1f0
[ 203.770094][ T6585] sysfs_do_create_link_sd+0x85/0x110
[ 203.770115][ T6585] software_node_notify+0xe1/0x1b0
[ 203.770138][ T6585] device_add+0x513/0xbf0
[ 203.770159][ T6585] ? iommufd_test+0x2efb/0x56a0
[ 203.770180][ T6585] iommufd_test+0x3350/0x56a0
[ 203.770210][ T6585] ? __pfx_iommufd_test+0x10/0x10
[ 203.770240][ T6585] ? __lock_acquire+0xad5/0xd80
[ 203.770296][ T6585] iommufd_fops_ioctl+0x4fc/0x610
[ 203.770322][ T6585] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 203.770350][ T6585] ? __fget_files+0x2a/0x420
[ 203.770377][ T6585] ? __fget_files+0x2a/0x420
[ 203.770401][ T6585] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 203.770427][ T6585] __se_sys_ioctl+0xf1/0x160
[ 203.770449][ T6585] do_syscall_64+0xf3/0x230
[ 203.770471][ T6585] ? clear_bhb_loop+0x45/0xa0
[ 203.770493][ T6585] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 203.770510][ T6585] RIP: 0033:0x7f9b9698d169
[ 203.770531][ T6585] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 203.770546][ T6585] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 203.770566][ T6585] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 203.770578][ T6585] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 203.770590][ T6585] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 203.770600][ T6585] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 203.770611][ T6585] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 203.770639][ T6585]
[ 203.771453][ T6585] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 204.082255][ T6587] FAULT_INJECTION: forcing a failure.
[ 204.082255][ T6587] name failslab, interval 1, probability 0, space 0, times 0
[ 204.098715][ T6587] CPU: 1 UID: 0 PID: 6587 Comm: syz.0.223 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 204.098740][ T6587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 204.098750][ T6587] Call Trace:
[ 204.098758][ T6587]
[ 204.098766][ T6587] dump_stack_lvl+0x241/0x360
[ 204.098804][ T6587] ? __pfx_dump_stack_lvl+0x10/0x10
[ 204.098829][ T6587] ? __pfx__printk+0x10/0x10
[ 204.098856][ T6587] ? __pfx___might_resched+0x10/0x10
[ 204.098887][ T6587] should_fail_ex+0x424/0x570
[ 204.098911][ T6587] should_failslab+0xac/0x100
[ 204.098937][ T6587] kmem_cache_alloc_noprof+0x78/0x390
[ 204.098960][ T6587] ? __kernfs_new_node+0xdf/0x890
[ 204.098983][ T6587] __kernfs_new_node+0xdf/0x890
[ 204.099003][ T6587] ? __lock_acquire+0xad5/0xd80
[ 204.099026][ T6587] ? __pfx___kernfs_new_node+0x10/0x10
[ 204.099055][ T6587] ? kernfs_root+0x1c/0x230
[ 204.099074][ T6587] ? kernfs_root+0x1c/0x230
[ 204.099094][ T6587] kernfs_new_node+0x114/0x220
[ 204.099118][ T6587] kernfs_create_dir_ns+0x43/0x120
[ 204.099141][ T6587] sysfs_create_dir_ns+0x1a2/0x3f0
[ 204.099179][ T6587] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 204.099206][ T6587] kobject_add_internal+0x435/0x8d0
[ 204.099238][ T6587] kobject_add+0x15b/0x230
[ 204.099262][ T6587] ? kobject_put+0x43d/0x480
[ 204.099283][ T6587] ? __pfx_kobject_add+0x10/0x10
[ 204.099307][ T6587] ? bus_get_dev_root+0x127/0x160
[ 204.099328][ T6587] ? get_device_parent+0x405/0x410
[ 204.099351][ T6587] ? device_add+0x318/0xbf0
[ 204.099373][ T6587] device_add+0x4e5/0xbf0
[ 204.099394][ T6587] ? iommufd_test+0x2efb/0x56a0
[ 204.099415][ T6587] iommufd_test+0x3350/0x56a0
[ 204.099446][ T6587] ? __pfx_iommufd_test+0x10/0x10
[ 204.099476][ T6587] ? __lock_acquire+0xad5/0xd80
[ 204.099532][ T6587] iommufd_fops_ioctl+0x4fc/0x610
[ 204.099559][ T6587] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 204.099587][ T6587] ? __fget_files+0x2a/0x420
[ 204.099609][ T6587] ? __fget_files+0x2a/0x420
[ 204.099648][ T6587] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 204.099673][ T6587] __se_sys_ioctl+0xf1/0x160
[ 204.099696][ T6587] do_syscall_64+0xf3/0x230
[ 204.099718][ T6587] ? clear_bhb_loop+0x45/0xa0
[ 204.099743][ T6587] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 204.099770][ T6587] RIP: 0033:0x7f9b9698d169
[ 204.099786][ T6587] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 204.099799][ T6587] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 204.099823][ T6587] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 204.099836][ T6587] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 204.099847][ T6587] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 204.099858][ T6587] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 204.099869][ T6587] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 204.099897][ T6587]
[ 204.099924][ T6587] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 204.432906][ T6589] FAULT_INJECTION: forcing a failure.
[ 204.432906][ T6589] name failslab, interval 1, probability 0, space 0, times 0
[ 204.445742][ T6589] CPU: 0 UID: 0 PID: 6589 Comm: syz.0.224 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 204.445767][ T6589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 204.445778][ T6589] Call Trace:
[ 204.445786][ T6589]
[ 204.445794][ T6589] dump_stack_lvl+0x241/0x360
[ 204.445826][ T6589] ? __pfx_dump_stack_lvl+0x10/0x10
[ 204.445850][ T6589] ? __pfx__printk+0x10/0x10
[ 204.445878][ T6589] ? __pfx___might_resched+0x10/0x10
[ 204.445905][ T6589] should_fail_ex+0x424/0x570
[ 204.445929][ T6589] should_failslab+0xac/0x100
[ 204.445955][ T6589] kmem_cache_alloc_noprof+0x78/0x390
[ 204.445979][ T6589] ? __kernfs_new_node+0xdf/0x890
[ 204.446002][ T6589] __kernfs_new_node+0xdf/0x890
[ 204.446020][ T6589] ? __lock_acquire+0xad5/0xd80
[ 204.446045][ T6589] ? __pfx___kernfs_new_node+0x10/0x10
[ 204.446072][ T6589] ? kernfs_root+0x1c/0x230
[ 204.446090][ T6589] ? kernfs_root+0x1c/0x230
[ 204.446111][ T6589] kernfs_new_node+0x114/0x220
[ 204.446133][ T6589] kernfs_create_link+0xa5/0x1f0
[ 204.446159][ T6589] sysfs_do_create_link_sd+0x85/0x110
[ 204.446179][ T6589] software_node_notify+0xe1/0x1b0
[ 204.446202][ T6589] device_add+0x513/0xbf0
[ 204.446223][ T6589] ? iommufd_test+0x2efb/0x56a0
[ 204.446244][ T6589] iommufd_test+0x3350/0x56a0
[ 204.446274][ T6589] ? __pfx_iommufd_test+0x10/0x10
[ 204.446304][ T6589] ? __lock_acquire+0xad5/0xd80
[ 204.446353][ T6589] iommufd_fops_ioctl+0x4fc/0x610
[ 204.446388][ T6589] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 204.446415][ T6589] ? __fget_files+0x2a/0x420
[ 204.446438][ T6589] ? __fget_files+0x2a/0x420
[ 204.446458][ T6589] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 204.446482][ T6589] __se_sys_ioctl+0xf1/0x160
[ 204.446506][ T6589] do_syscall_64+0xf3/0x230
[ 204.446527][ T6589] ? clear_bhb_loop+0x45/0xa0
[ 204.446548][ T6589] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 204.446564][ T6589] RIP: 0033:0x7f9b9698d169
[ 204.446580][ T6589] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 204.446593][ T6589] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 204.446613][ T6589] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 204.446625][ T6589] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 204.446637][ T6589] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 204.446647][ T6589] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 204.446658][ T6589] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 204.446685][ T6589]
[ 204.447432][ T6589] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 204.812951][ T6591] FAULT_INJECTION: forcing a failure.
[ 204.812951][ T6591] name failslab, interval 1, probability 0, space 0, times 0
[ 204.857739][ T6591] CPU: 0 UID: 0 PID: 6591 Comm: syz.0.225 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 204.857766][ T6591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 204.857778][ T6591] Call Trace:
[ 204.857786][ T6591]
[ 204.857794][ T6591] dump_stack_lvl+0x241/0x360
[ 204.857826][ T6591] ? __pfx_dump_stack_lvl+0x10/0x10
[ 204.857850][ T6591] ? __pfx__printk+0x10/0x10
[ 204.857879][ T6591] ? __pfx___might_resched+0x10/0x10
[ 204.857906][ T6591] should_fail_ex+0x424/0x570
[ 204.857929][ T6591] should_failslab+0xac/0x100
[ 204.857954][ T6591] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 204.857980][ T6591] ? __kernfs_new_node+0xa2/0x890
[ 204.857998][ T6591] ? kernel_text_address+0xa7/0xe0
[ 204.858018][ T6591] kstrdup+0x42/0x100
[ 204.858042][ T6591] __kernfs_new_node+0xa2/0x890
[ 204.858062][ T6591] ? __lock_acquire+0xad5/0xd80
[ 204.858085][ T6591] ? __pfx___kernfs_new_node+0x10/0x10
[ 204.858115][ T6591] ? kernfs_root+0x1c/0x230
[ 204.858133][ T6591] ? kernfs_root+0x1c/0x230
[ 204.858153][ T6591] kernfs_new_node+0x114/0x220
[ 204.858176][ T6591] kernfs_create_dir_ns+0x43/0x120
[ 204.858200][ T6591] sysfs_create_dir_ns+0x1a2/0x3f0
[ 204.858221][ T6591] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 204.858248][ T6591] kobject_add_internal+0x435/0x8d0
[ 204.858280][ T6591] kobject_add+0x15b/0x230
[ 204.858304][ T6591] ? kobject_put+0x43d/0x480
[ 204.858325][ T6591] ? __pfx_kobject_add+0x10/0x10
[ 204.858353][ T6591] ? bus_get_dev_root+0x127/0x160
[ 204.858379][ T6591] ? get_device_parent+0x405/0x410
[ 204.858397][ T6591] ? device_add+0x318/0xbf0
[ 204.858426][ T6591] device_add+0x4e5/0xbf0
[ 204.858447][ T6591] ? iommufd_test+0x2efb/0x56a0
[ 204.858468][ T6591] iommufd_test+0x3350/0x56a0
[ 204.858499][ T6591] ? __pfx_iommufd_test+0x10/0x10
[ 204.858529][ T6591] ? __lock_acquire+0xad5/0xd80
[ 204.858580][ T6591] iommufd_fops_ioctl+0x4fc/0x610
[ 204.858606][ T6591] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 204.858634][ T6591] ? __fget_files+0x2a/0x420
[ 204.858655][ T6591] ? __fget_files+0x2a/0x420
[ 204.858676][ T6591] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 204.858701][ T6591] __se_sys_ioctl+0xf1/0x160
[ 204.858724][ T6591] do_syscall_64+0xf3/0x230
[ 204.858745][ T6591] ? clear_bhb_loop+0x45/0xa0
[ 204.858765][ T6591] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 204.858782][ T6591] RIP: 0033:0x7f9b9698d169
[ 204.858798][ T6591] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 204.858812][ T6591] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 204.858831][ T6591] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 204.858844][ T6591] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 204.858856][ T6591] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 204.858867][ T6591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 204.858876][ T6591] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 204.858904][ T6591]
[ 204.858916][ T6591] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 205.279638][ T6593] FAULT_INJECTION: forcing a failure.
[ 205.279638][ T6593] name failslab, interval 1, probability 0, space 0, times 0
[ 205.307941][ T6593] CPU: 0 UID: 0 PID: 6593 Comm: syz.0.226 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 205.307970][ T6593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 205.307981][ T6593] Call Trace:
[ 205.307988][ T6593]
[ 205.307996][ T6593] dump_stack_lvl+0x241/0x360
[ 205.308029][ T6593] ? __pfx_dump_stack_lvl+0x10/0x10
[ 205.308176][ T6593] ? __pfx__printk+0x10/0x10
[ 205.308204][ T6593] ? __pfx___might_resched+0x10/0x10
[ 205.308230][ T6593] should_fail_ex+0x424/0x570
[ 205.308254][ T6593] should_failslab+0xac/0x100
[ 205.308280][ T6593] kmem_cache_alloc_noprof+0x78/0x390
[ 205.308301][ T6593] ? __kernfs_new_node+0xdf/0x890
[ 205.308325][ T6593] __kernfs_new_node+0xdf/0x890
[ 205.308343][ T6593] ? __lock_acquire+0xad5/0xd80
[ 205.308368][ T6593] ? __pfx___kernfs_new_node+0x10/0x10
[ 205.308394][ T6593] ? kernfs_root+0x1c/0x230
[ 205.308413][ T6593] ? kernfs_root+0x1c/0x230
[ 205.308433][ T6593] kernfs_new_node+0x114/0x220
[ 205.308456][ T6593] kernfs_create_link+0xa5/0x1f0
[ 205.308482][ T6593] sysfs_do_create_link_sd+0x85/0x110
[ 205.308503][ T6593] software_node_notify+0xe1/0x1b0
[ 205.308525][ T6593] device_add+0x513/0xbf0
[ 205.308546][ T6593] ? iommufd_test+0x2efb/0x56a0
[ 205.308568][ T6593] iommufd_test+0x3350/0x56a0
[ 205.308598][ T6593] ? __pfx_iommufd_test+0x10/0x10
[ 205.308628][ T6593] ? __lock_acquire+0xad5/0xd80
[ 205.308677][ T6593] iommufd_fops_ioctl+0x4fc/0x610
[ 205.308704][ T6593] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 205.308732][ T6593] ? __fget_files+0x2a/0x420
[ 205.308754][ T6593] ? __fget_files+0x2a/0x420
[ 205.308774][ T6593] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 205.308799][ T6593] __se_sys_ioctl+0xf1/0x160
[ 205.308822][ T6593] do_syscall_64+0xf3/0x230
[ 205.308844][ T6593] ? clear_bhb_loop+0x45/0xa0
[ 205.308864][ T6593] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 205.308881][ T6593] RIP: 0033:0x7f9b9698d169
[ 205.308896][ T6593] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 205.308910][ T6593] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 205.308928][ T6593] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 205.308941][ T6593] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 205.308953][ T6593] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 205.308964][ T6593] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 205.308974][ T6593] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 205.309001][ T6593]
[ 205.309773][ T6593] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 205.641124][ T6595] FAULT_INJECTION: forcing a failure.
[ 205.641124][ T6595] name failslab, interval 1, probability 0, space 0, times 0
[ 205.677868][ T6595] CPU: 0 UID: 0 PID: 6595 Comm: syz.0.227 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 205.677896][ T6595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 205.677907][ T6595] Call Trace:
[ 205.677915][ T6595]
[ 205.677923][ T6595] dump_stack_lvl+0x241/0x360
[ 205.677955][ T6595] ? __pfx_dump_stack_lvl+0x10/0x10
[ 205.677979][ T6595] ? __pfx__printk+0x10/0x10
[ 205.678006][ T6595] ? __pfx___might_resched+0x10/0x10
[ 205.678033][ T6595] should_fail_ex+0x424/0x570
[ 205.678056][ T6595] should_failslab+0xac/0x100
[ 205.678082][ T6595] kmem_cache_alloc_noprof+0x78/0x390
[ 205.678105][ T6595] ? __kernfs_new_node+0xdf/0x890
[ 205.678128][ T6595] __kernfs_new_node+0xdf/0x890
[ 205.678146][ T6595] ? __lock_acquire+0xad5/0xd80
[ 205.678171][ T6595] ? __pfx___kernfs_new_node+0x10/0x10
[ 205.678198][ T6595] ? kernfs_root+0x1c/0x230
[ 205.678216][ T6595] ? kernfs_root+0x1c/0x230
[ 205.678235][ T6595] kernfs_new_node+0x114/0x220
[ 205.678258][ T6595] kernfs_create_link+0xa5/0x1f0
[ 205.678285][ T6595] sysfs_do_create_link_sd+0x85/0x110
[ 205.678313][ T6595] software_node_notify+0xe1/0x1b0
[ 205.678335][ T6595] device_add+0x513/0xbf0
[ 205.678357][ T6595] ? iommufd_test+0x2efb/0x56a0
[ 205.678378][ T6595] iommufd_test+0x3350/0x56a0
[ 205.678408][ T6595] ? __pfx_iommufd_test+0x10/0x10
[ 205.678438][ T6595] ? __lock_acquire+0xad5/0xd80
[ 205.678489][ T6595] iommufd_fops_ioctl+0x4fc/0x610
[ 205.678516][ T6595] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 205.678543][ T6595] ? __fget_files+0x2a/0x420
[ 205.678565][ T6595] ? __fget_files+0x2a/0x420
[ 205.678585][ T6595] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 205.678610][ T6595] __se_sys_ioctl+0xf1/0x160
[ 205.678633][ T6595] do_syscall_64+0xf3/0x230
[ 205.678654][ T6595] ? clear_bhb_loop+0x45/0xa0
[ 205.678675][ T6595] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 205.678691][ T6595] RIP: 0033:0x7f9b9698d169
[ 205.678707][ T6595] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 205.678721][ T6595] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 205.678741][ T6595] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 205.678754][ T6595] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 205.678765][ T6595] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 205.678775][ T6595] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 205.678784][ T6595] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 205.678810][ T6595]
[ 205.679598][ T6595] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 206.048261][ T6597] FAULT_INJECTION: forcing a failure.
[ 206.048261][ T6597] name failslab, interval 1, probability 0, space 0, times 0
[ 206.061727][ T6597] CPU: 0 UID: 0 PID: 6597 Comm: syz.0.228 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 206.061752][ T6597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 206.061763][ T6597] Call Trace:
[ 206.061770][ T6597]
[ 206.061777][ T6597] dump_stack_lvl+0x241/0x360
[ 206.061809][ T6597] ? __pfx_dump_stack_lvl+0x10/0x10
[ 206.061832][ T6597] ? __pfx__printk+0x10/0x10
[ 206.061858][ T6597] ? __pfx___might_resched+0x10/0x10
[ 206.061891][ T6597] should_fail_ex+0x424/0x570
[ 206.061913][ T6597] should_failslab+0xac/0x100
[ 206.061937][ T6597] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 206.061961][ T6597] ? __kernfs_new_node+0xa2/0x890
[ 206.061977][ T6597] ? kernel_text_address+0xa7/0xe0
[ 206.062004][ T6597] kstrdup+0x42/0x100
[ 206.062026][ T6597] __kernfs_new_node+0xa2/0x890
[ 206.062044][ T6597] ? __lock_acquire+0xad5/0xd80
[ 206.062067][ T6597] ? __pfx___kernfs_new_node+0x10/0x10
[ 206.062095][ T6597] ? kernfs_root+0x1c/0x230
[ 206.062113][ T6597] ? kernfs_root+0x1c/0x230
[ 206.062131][ T6597] kernfs_new_node+0x114/0x220
[ 206.062154][ T6597] kernfs_create_dir_ns+0x43/0x120
[ 206.062176][ T6597] sysfs_create_dir_ns+0x1a2/0x3f0
[ 206.062195][ T6597] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 206.062221][ T6597] kobject_add_internal+0x435/0x8d0
[ 206.062251][ T6597] kobject_add+0x15b/0x230
[ 206.062274][ T6597] ? kobject_put+0x43d/0x480
[ 206.062295][ T6597] ? __pfx_kobject_add+0x10/0x10
[ 206.062317][ T6597] ? bus_get_dev_root+0x127/0x160
[ 206.062337][ T6597] ? get_device_parent+0x405/0x410
[ 206.062355][ T6597] ? device_add+0x318/0xbf0
[ 206.062374][ T6597] device_add+0x4e5/0xbf0
[ 206.062395][ T6597] ? iommufd_test+0x2efb/0x56a0
[ 206.062417][ T6597] iommufd_test+0x3350/0x56a0
[ 206.062445][ T6597] ? __pfx_iommufd_test+0x10/0x10
[ 206.062474][ T6597] ? __lock_acquire+0xad5/0xd80
[ 206.062520][ T6597] iommufd_fops_ioctl+0x4fc/0x610
[ 206.062546][ T6597] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 206.062571][ T6597] ? __fget_files+0x2a/0x420
[ 206.062593][ T6597] ? __fget_files+0x2a/0x420
[ 206.062613][ T6597] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 206.062638][ T6597] __se_sys_ioctl+0xf1/0x160
[ 206.062661][ T6597] do_syscall_64+0xf3/0x230
[ 206.062682][ T6597] ? clear_bhb_loop+0x45/0xa0
[ 206.062703][ T6597] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.062720][ T6597] RIP: 0033:0x7f9b9698d169
[ 206.062735][ T6597] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 206.062750][ T6597] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 206.062768][ T6597] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 206.062780][ T6597] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 206.062792][ T6597] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 206.062803][ T6597] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 206.062813][ T6597] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 206.062841][ T6597]
[ 206.062852][ T6597] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
2025/04/10 19:10:01 executed programs: 215
[ 206.413512][ T6599] FAULT_INJECTION: forcing a failure.
[ 206.413512][ T6599] name failslab, interval 1, probability 0, space 0, times 0
[ 206.479166][ T6599] CPU: 1 UID: 0 PID: 6599 Comm: syz.0.229 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 206.479195][ T6599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 206.479206][ T6599] Call Trace:
[ 206.479214][ T6599]
[ 206.479222][ T6599] dump_stack_lvl+0x241/0x360
[ 206.479256][ T6599] ? __pfx_dump_stack_lvl+0x10/0x10
[ 206.479281][ T6599] ? __pfx__printk+0x10/0x10
[ 206.479310][ T6599] ? __pfx___might_resched+0x10/0x10
[ 206.479336][ T6599] should_fail_ex+0x424/0x570
[ 206.479360][ T6599] should_failslab+0xac/0x100
[ 206.479386][ T6599] kmem_cache_alloc_noprof+0x78/0x390
[ 206.479409][ T6599] ? __kernfs_new_node+0xdf/0x890
[ 206.479432][ T6599] __kernfs_new_node+0xdf/0x890
[ 206.479450][ T6599] ? __lock_acquire+0xad5/0xd80
[ 206.479476][ T6599] ? __pfx___kernfs_new_node+0x10/0x10
[ 206.479504][ T6599] ? kernfs_root+0x1c/0x230
[ 206.479523][ T6599] ? kernfs_root+0x1c/0x230
[ 206.479543][ T6599] kernfs_new_node+0x114/0x220
[ 206.479566][ T6599] kernfs_create_link+0xa5/0x1f0
[ 206.479593][ T6599] sysfs_do_create_link_sd+0x85/0x110
[ 206.479614][ T6599] software_node_notify+0xe1/0x1b0
[ 206.479633][ T6599] device_add+0x513/0xbf0
[ 206.479652][ T6599] ? iommufd_test+0x2efb/0x56a0
[ 206.479674][ T6599] iommufd_test+0x3350/0x56a0
[ 206.479704][ T6599] ? __pfx_iommufd_test+0x10/0x10
[ 206.479734][ T6599] ? __lock_acquire+0xad5/0xd80
[ 206.479784][ T6599] iommufd_fops_ioctl+0x4fc/0x610
[ 206.479811][ T6599] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 206.479839][ T6599] ? __fget_files+0x2a/0x420
[ 206.479862][ T6599] ? __fget_files+0x2a/0x420
[ 206.479882][ T6599] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 206.479906][ T6599] __se_sys_ioctl+0xf1/0x160
[ 206.479928][ T6599] do_syscall_64+0xf3/0x230
[ 206.479950][ T6599] ? clear_bhb_loop+0x45/0xa0
[ 206.479980][ T6599] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.479997][ T6599] RIP: 0033:0x7f9b9698d169
[ 206.480013][ T6599] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 206.480027][ T6599] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 206.480047][ T6599] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 206.480061][ T6599] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 206.480072][ T6599] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 206.480084][ T6599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 206.480094][ T6599] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 206.480121][ T6599]
[ 206.481869][ T6599] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 206.832290][ T6601] FAULT_INJECTION: forcing a failure.
[ 206.832290][ T6601] name failslab, interval 1, probability 0, space 0, times 0
[ 206.852607][ T6601] CPU: 1 UID: 0 PID: 6601 Comm: syz.0.230 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 206.852635][ T6601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 206.852646][ T6601] Call Trace:
[ 206.852654][ T6601]
[ 206.852662][ T6601] dump_stack_lvl+0x241/0x360
[ 206.852694][ T6601] ? __pfx_dump_stack_lvl+0x10/0x10
[ 206.852719][ T6601] ? __pfx__printk+0x10/0x10
[ 206.852746][ T6601] ? __pfx___might_resched+0x10/0x10
[ 206.852773][ T6601] should_fail_ex+0x424/0x570
[ 206.852795][ T6601] should_failslab+0xac/0x100
[ 206.852819][ T6601] kmem_cache_alloc_noprof+0x78/0x390
[ 206.852842][ T6601] ? __kernfs_new_node+0xdf/0x890
[ 206.852865][ T6601] __kernfs_new_node+0xdf/0x890
[ 206.852883][ T6601] ? __lock_acquire+0xad5/0xd80
[ 206.852908][ T6601] ? __pfx___kernfs_new_node+0x10/0x10
[ 206.852935][ T6601] ? kernfs_root+0x1c/0x230
[ 206.852954][ T6601] ? kernfs_root+0x1c/0x230
[ 206.852972][ T6601] kernfs_new_node+0x114/0x220
[ 206.852996][ T6601] kernfs_create_link+0xa5/0x1f0
[ 206.853022][ T6601] sysfs_do_create_link_sd+0x85/0x110
[ 206.853042][ T6601] software_node_notify+0xe1/0x1b0
[ 206.853064][ T6601] device_add+0x513/0xbf0
[ 206.853085][ T6601] ? iommufd_test+0x2efb/0x56a0
[ 206.853106][ T6601] iommufd_test+0x3350/0x56a0
[ 206.853136][ T6601] ? __pfx_iommufd_test+0x10/0x10
[ 206.853166][ T6601] ? __lock_acquire+0xad5/0xd80
[ 206.853225][ T6601] iommufd_fops_ioctl+0x4fc/0x610
[ 206.853253][ T6601] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 206.853281][ T6601] ? __fget_files+0x2a/0x420
[ 206.853303][ T6601] ? __fget_files+0x2a/0x420
[ 206.853323][ T6601] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 206.853348][ T6601] __se_sys_ioctl+0xf1/0x160
[ 206.853370][ T6601] do_syscall_64+0xf3/0x230
[ 206.853393][ T6601] ? clear_bhb_loop+0x45/0xa0
[ 206.853413][ T6601] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.853430][ T6601] RIP: 0033:0x7f9b9698d169
[ 206.853446][ T6601] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 206.853459][ T6601] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 206.853478][ T6601] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 206.853491][ T6601] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 206.853503][ T6601] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 206.853514][ T6601] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 206.853524][ T6601] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 206.853551][ T6601]
[ 206.854297][ T6601] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 207.160577][ T6603] FAULT_INJECTION: forcing a failure.
[ 207.160577][ T6603] name failslab, interval 1, probability 0, space 0, times 0
[ 207.210694][ T6603] CPU: 0 UID: 0 PID: 6603 Comm: syz.0.231 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 207.210723][ T6603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 207.210734][ T6603] Call Trace:
[ 207.210741][ T6603]
[ 207.210749][ T6603] dump_stack_lvl+0x241/0x360
[ 207.210782][ T6603] ? __pfx_dump_stack_lvl+0x10/0x10
[ 207.210807][ T6603] ? __pfx__printk+0x10/0x10
[ 207.210835][ T6603] ? __pfx___might_resched+0x10/0x10
[ 207.210871][ T6603] should_fail_ex+0x424/0x570
[ 207.210896][ T6603] should_failslab+0xac/0x100
[ 207.210921][ T6603] kmem_cache_alloc_noprof+0x78/0x390
[ 207.210944][ T6603] ? __kernfs_new_node+0xdf/0x890
[ 207.210972][ T6603] __kernfs_new_node+0xdf/0x890
[ 207.210990][ T6603] ? __lock_acquire+0xad5/0xd80
[ 207.211016][ T6603] ? __pfx___kernfs_new_node+0x10/0x10
[ 207.211043][ T6603] ? kernfs_root+0x1c/0x230
[ 207.211062][ T6603] ? kernfs_root+0x1c/0x230
[ 207.211082][ T6603] kernfs_new_node+0x114/0x220
[ 207.211106][ T6603] kernfs_create_link+0xa5/0x1f0
[ 207.211133][ T6603] sysfs_do_create_link_sd+0x85/0x110
[ 207.211153][ T6603] software_node_notify+0xe1/0x1b0
[ 207.211176][ T6603] device_add+0x513/0xbf0
[ 207.211198][ T6603] ? iommufd_test+0x2efb/0x56a0
[ 207.211218][ T6603] iommufd_test+0x3350/0x56a0
[ 207.211249][ T6603] ? __pfx_iommufd_test+0x10/0x10
[ 207.211279][ T6603] ? __lock_acquire+0xad5/0xd80
[ 207.211329][ T6603] iommufd_fops_ioctl+0x4fc/0x610
[ 207.211356][ T6603] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 207.211383][ T6603] ? __fget_files+0x2a/0x420
[ 207.211405][ T6603] ? __fget_files+0x2a/0x420
[ 207.211426][ T6603] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 207.211451][ T6603] __se_sys_ioctl+0xf1/0x160
[ 207.211474][ T6603] do_syscall_64+0xf3/0x230
[ 207.211496][ T6603] ? clear_bhb_loop+0x45/0xa0
[ 207.211518][ T6603] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 207.211535][ T6603] RIP: 0033:0x7f9b9698d169
[ 207.211551][ T6603] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 207.211566][ T6603] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 207.211587][ T6603] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 207.211599][ T6603] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 207.211611][ T6603] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 207.211622][ T6603] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 207.211632][ T6603] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 207.211660][ T6603]
[ 207.212433][ T6603] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 207.517515][ T6605] FAULT_INJECTION: forcing a failure.
[ 207.517515][ T6605] name failslab, interval 1, probability 0, space 0, times 0
[ 207.556317][ T6605] CPU: 1 UID: 0 PID: 6605 Comm: syz.0.232 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 207.556345][ T6605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 207.556357][ T6605] Call Trace:
[ 207.556365][ T6605]
[ 207.556373][ T6605] dump_stack_lvl+0x241/0x360
[ 207.556404][ T6605] ? __pfx_dump_stack_lvl+0x10/0x10
[ 207.556428][ T6605] ? __pfx__printk+0x10/0x10
[ 207.556455][ T6605] ? __pfx___might_resched+0x10/0x10
[ 207.556481][ T6605] should_fail_ex+0x424/0x570
[ 207.556504][ T6605] should_failslab+0xac/0x100
[ 207.556530][ T6605] kmem_cache_alloc_noprof+0x78/0x390
[ 207.556553][ T6605] ? __kernfs_new_node+0xdf/0x890
[ 207.556576][ T6605] __kernfs_new_node+0xdf/0x890
[ 207.556595][ T6605] ? __lock_acquire+0xad5/0xd80
[ 207.556617][ T6605] ? __pfx___kernfs_new_node+0x10/0x10
[ 207.556646][ T6605] ? kernfs_root+0x1c/0x230
[ 207.556665][ T6605] ? kernfs_root+0x1c/0x230
[ 207.556684][ T6605] kernfs_new_node+0x114/0x220
[ 207.556708][ T6605] kernfs_create_dir_ns+0x43/0x120
[ 207.556731][ T6605] sysfs_create_dir_ns+0x1a2/0x3f0
[ 207.556752][ T6605] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 207.556778][ T6605] kobject_add_internal+0x435/0x8d0
[ 207.556810][ T6605] kobject_add+0x15b/0x230
[ 207.556834][ T6605] ? kobject_put+0x43d/0x480
[ 207.556855][ T6605] ? __pfx_kobject_add+0x10/0x10
[ 207.556888][ T6605] ? bus_get_dev_root+0x127/0x160
[ 207.556910][ T6605] ? get_device_parent+0x405/0x410
[ 207.556929][ T6605] ? device_add+0x318/0xbf0
[ 207.556950][ T6605] device_add+0x4e5/0xbf0
[ 207.556971][ T6605] ? iommufd_test+0x2efb/0x56a0
[ 207.556992][ T6605] iommufd_test+0x3350/0x56a0
[ 207.557022][ T6605] ? __pfx_iommufd_test+0x10/0x10
[ 207.557052][ T6605] ? __lock_acquire+0xad5/0xd80
[ 207.557101][ T6605] iommufd_fops_ioctl+0x4fc/0x610
[ 207.557128][ T6605] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 207.557155][ T6605] ? __fget_files+0x2a/0x420
[ 207.557176][ T6605] ? __fget_files+0x2a/0x420
[ 207.557197][ T6605] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 207.557221][ T6605] __se_sys_ioctl+0xf1/0x160
[ 207.557245][ T6605] do_syscall_64+0xf3/0x230
[ 207.557266][ T6605] ? clear_bhb_loop+0x45/0xa0
[ 207.557287][ T6605] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 207.557304][ T6605] RIP: 0033:0x7f9b9698d169
[ 207.557319][ T6605] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 207.557333][ T6605] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 207.557351][ T6605] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 207.557364][ T6605] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 207.557376][ T6605] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 207.557387][ T6605] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 207.557397][ T6605] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 207.557424][ T6605]
[ 207.557450][ T6605] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 207.947446][ T6607] FAULT_INJECTION: forcing a failure.
[ 207.947446][ T6607] name failslab, interval 1, probability 0, space 0, times 0
[ 207.962117][ T6607] CPU: 1 UID: 0 PID: 6607 Comm: syz.0.233 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 207.962143][ T6607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 207.962154][ T6607] Call Trace:
[ 207.962162][ T6607]
[ 207.962169][ T6607] dump_stack_lvl+0x241/0x360
[ 207.962202][ T6607] ? __pfx_dump_stack_lvl+0x10/0x10
[ 207.962226][ T6607] ? __pfx__printk+0x10/0x10
[ 207.962255][ T6607] ? __pfx___might_resched+0x10/0x10
[ 207.962281][ T6607] should_fail_ex+0x424/0x570
[ 207.962304][ T6607] should_failslab+0xac/0x100
[ 207.962329][ T6607] kmem_cache_alloc_noprof+0x78/0x390
[ 207.962352][ T6607] ? __kernfs_new_node+0xdf/0x890
[ 207.962375][ T6607] __kernfs_new_node+0xdf/0x890
[ 207.962394][ T6607] ? __lock_acquire+0xad5/0xd80
[ 207.962418][ T6607] ? __pfx___kernfs_new_node+0x10/0x10
[ 207.962447][ T6607] ? kernfs_root+0x1c/0x230
[ 207.962465][ T6607] ? kernfs_root+0x1c/0x230
[ 207.962485][ T6607] kernfs_new_node+0x114/0x220
[ 207.962509][ T6607] kernfs_create_dir_ns+0x43/0x120
[ 207.962532][ T6607] sysfs_create_dir_ns+0x1a2/0x3f0
[ 207.962552][ T6607] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 207.962579][ T6607] kobject_add_internal+0x435/0x8d0
[ 207.962611][ T6607] kobject_add+0x15b/0x230
[ 207.962636][ T6607] ? kobject_put+0x43d/0x480
[ 207.962657][ T6607] ? __pfx_kobject_add+0x10/0x10
[ 207.962680][ T6607] ? bus_get_dev_root+0x127/0x160
[ 207.962702][ T6607] ? get_device_parent+0x405/0x410
[ 207.962721][ T6607] ? device_add+0x318/0xbf0
[ 207.962741][ T6607] device_add+0x4e5/0xbf0
[ 207.962762][ T6607] ? iommufd_test+0x2efb/0x56a0
[ 207.962783][ T6607] iommufd_test+0x3350/0x56a0
[ 207.962813][ T6607] ? __pfx_iommufd_test+0x10/0x10
[ 207.962843][ T6607] ? __lock_acquire+0xad5/0xd80
[ 207.962953][ T6607] iommufd_fops_ioctl+0x4fc/0x610
[ 207.962981][ T6607] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 207.963009][ T6607] ? __fget_files+0x2a/0x420
[ 207.963030][ T6607] ? __fget_files+0x2a/0x420
[ 207.963051][ T6607] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 207.963076][ T6607] __se_sys_ioctl+0xf1/0x160
[ 207.963098][ T6607] do_syscall_64+0xf3/0x230
[ 207.963118][ T6607] ? clear_bhb_loop+0x45/0xa0
[ 207.963138][ T6607] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 207.963154][ T6607] RIP: 0033:0x7f9b9698d169
[ 207.963171][ T6607] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 207.963185][ T6607] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 207.963204][ T6607] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 207.963216][ T6607] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 207.963227][ T6607] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 207.963239][ T6607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 207.963249][ T6607] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 207.963276][ T6607]
[ 207.963303][ T6607] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 208.352472][ T6609] FAULT_INJECTION: forcing a failure.
[ 208.352472][ T6609] name failslab, interval 1, probability 0, space 0, times 0
[ 208.366147][ T6609] CPU: 0 UID: 0 PID: 6609 Comm: syz.0.234 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 208.366172][ T6609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 208.366183][ T6609] Call Trace:
[ 208.366191][ T6609]
[ 208.366198][ T6609] dump_stack_lvl+0x241/0x360
[ 208.366230][ T6609] ? __pfx_dump_stack_lvl+0x10/0x10
[ 208.366254][ T6609] ? __pfx__printk+0x10/0x10
[ 208.366282][ T6609] ? __pfx___might_resched+0x10/0x10
[ 208.366308][ T6609] should_fail_ex+0x424/0x570
[ 208.366331][ T6609] should_failslab+0xac/0x100
[ 208.366357][ T6609] kmem_cache_alloc_noprof+0x78/0x390
[ 208.366381][ T6609] ? __kernfs_new_node+0xdf/0x890
[ 208.366404][ T6609] __kernfs_new_node+0xdf/0x890
[ 208.366422][ T6609] ? __lock_acquire+0xad5/0xd80
[ 208.366447][ T6609] ? __pfx___kernfs_new_node+0x10/0x10
[ 208.366474][ T6609] ? kernfs_root+0x1c/0x230
[ 208.366493][ T6609] ? kernfs_root+0x1c/0x230
[ 208.366513][ T6609] kernfs_new_node+0x114/0x220
[ 208.366536][ T6609] kernfs_create_link+0xa5/0x1f0
[ 208.366562][ T6609] sysfs_do_create_link_sd+0x85/0x110
[ 208.366582][ T6609] software_node_notify+0xe1/0x1b0
[ 208.366604][ T6609] device_add+0x513/0xbf0
[ 208.366625][ T6609] ? iommufd_test+0x2efb/0x56a0
[ 208.366646][ T6609] iommufd_test+0x3350/0x56a0
[ 208.366676][ T6609] ? __pfx_iommufd_test+0x10/0x10
[ 208.366705][ T6609] ? __lock_acquire+0xad5/0xd80
[ 208.366758][ T6609] iommufd_fops_ioctl+0x4fc/0x610
[ 208.366783][ T6609] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 208.366809][ T6609] ? __fget_files+0x2a/0x420
[ 208.366832][ T6609] ? __fget_files+0x2a/0x420
[ 208.366852][ T6609] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 208.366876][ T6609] __se_sys_ioctl+0xf1/0x160
[ 208.366899][ T6609] do_syscall_64+0xf3/0x230
[ 208.366920][ T6609] ? clear_bhb_loop+0x45/0xa0
[ 208.366941][ T6609] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 208.366958][ T6609] RIP: 0033:0x7f9b9698d169
[ 208.366973][ T6609] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 208.366987][ T6609] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 208.367006][ T6609] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 208.367019][ T6609] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 208.367031][ T6609] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 208.367041][ T6609] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 208.367052][ T6609] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 208.367085][ T6609]
[ 208.644514][ T6609] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 208.680764][ T6611] FAULT_INJECTION: forcing a failure.
[ 208.680764][ T6611] name failslab, interval 1, probability 0, space 0, times 0
[ 208.700863][ T6611] CPU: 1 UID: 0 PID: 6611 Comm: syz.0.235 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 208.700891][ T6611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 208.700901][ T6611] Call Trace:
[ 208.700909][ T6611]
[ 208.700917][ T6611] dump_stack_lvl+0x241/0x360
[ 208.700949][ T6611] ? __pfx_dump_stack_lvl+0x10/0x10
[ 208.700973][ T6611] ? __pfx__printk+0x10/0x10
[ 208.701000][ T6611] ? __pfx___might_resched+0x10/0x10
[ 208.701025][ T6611] should_fail_ex+0x424/0x570
[ 208.701049][ T6611] should_failslab+0xac/0x100
[ 208.701076][ T6611] kmem_cache_alloc_noprof+0x78/0x390
[ 208.701098][ T6611] ? __kernfs_new_node+0xdf/0x890
[ 208.701122][ T6611] __kernfs_new_node+0xdf/0x890
[ 208.701142][ T6611] ? __lock_acquire+0xad5/0xd80
[ 208.701164][ T6611] ? __pfx___kernfs_new_node+0x10/0x10
[ 208.701194][ T6611] ? kernfs_root+0x1c/0x230
[ 208.701213][ T6611] ? kernfs_root+0x1c/0x230
[ 208.701231][ T6611] kernfs_new_node+0x114/0x220
[ 208.701254][ T6611] kernfs_create_dir_ns+0x43/0x120
[ 208.701277][ T6611] sysfs_create_dir_ns+0x1a2/0x3f0
[ 208.701298][ T6611] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 208.701324][ T6611] kobject_add_internal+0x435/0x8d0
[ 208.701356][ T6611] kobject_add+0x15b/0x230
[ 208.701381][ T6611] ? kobject_put+0x43d/0x480
[ 208.701402][ T6611] ? __pfx_kobject_add+0x10/0x10
[ 208.701426][ T6611] ? bus_get_dev_root+0x127/0x160
[ 208.701447][ T6611] ? get_device_parent+0x405/0x410
[ 208.701465][ T6611] ? device_add+0x318/0xbf0
[ 208.701487][ T6611] device_add+0x4e5/0xbf0
[ 208.701507][ T6611] ? iommufd_test+0x2efb/0x56a0
[ 208.701528][ T6611] iommufd_test+0x3350/0x56a0
[ 208.701559][ T6611] ? __pfx_iommufd_test+0x10/0x10
[ 208.701588][ T6611] ? __lock_acquire+0xad5/0xd80
[ 208.701638][ T6611] iommufd_fops_ioctl+0x4fc/0x610
[ 208.701663][ T6611] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 208.701688][ T6611] ? __fget_files+0x2a/0x420
[ 208.701708][ T6611] ? __fget_files+0x2a/0x420
[ 208.701734][ T6611] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 208.701755][ T6611] __se_sys_ioctl+0xf1/0x160
[ 208.701775][ T6611] do_syscall_64+0xf3/0x230
[ 208.701794][ T6611] ? clear_bhb_loop+0x45/0xa0
[ 208.701814][ T6611] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 208.701830][ T6611] RIP: 0033:0x7f9b9698d169
[ 208.701846][ T6611] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 208.701859][ T6611] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 208.701878][ T6611] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 208.701890][ T6611] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 208.701901][ T6611] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 208.701911][ T6611] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 208.701921][ T6611] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 208.701948][ T6611]
[ 208.701971][ T6611] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 209.103507][ T6613] FAULT_INJECTION: forcing a failure.
[ 209.103507][ T6613] name failslab, interval 1, probability 0, space 0, times 0
[ 209.123154][ T6613] CPU: 1 UID: 0 PID: 6613 Comm: syz.0.236 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 209.123182][ T6613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 209.123193][ T6613] Call Trace:
[ 209.123200][ T6613]
[ 209.123208][ T6613] dump_stack_lvl+0x241/0x360
[ 209.123241][ T6613] ? __pfx_dump_stack_lvl+0x10/0x10
[ 209.123265][ T6613] ? __pfx__printk+0x10/0x10
[ 209.123292][ T6613] ? __pfx___might_resched+0x10/0x10
[ 209.123319][ T6613] should_fail_ex+0x424/0x570
[ 209.123342][ T6613] should_failslab+0xac/0x100
[ 209.123368][ T6613] kmem_cache_alloc_noprof+0x78/0x390
[ 209.123391][ T6613] ? __kernfs_new_node+0xdf/0x890
[ 209.123415][ T6613] __kernfs_new_node+0xdf/0x890
[ 209.123433][ T6613] ? __lock_acquire+0xad5/0xd80
[ 209.123458][ T6613] ? __pfx___kernfs_new_node+0x10/0x10
[ 209.123485][ T6613] ? kernfs_root+0x1c/0x230
[ 209.123504][ T6613] ? kernfs_root+0x1c/0x230
[ 209.123524][ T6613] kernfs_new_node+0x114/0x220
[ 209.123546][ T6613] kernfs_create_link+0xa5/0x1f0
[ 209.123572][ T6613] sysfs_do_create_link_sd+0x85/0x110
[ 209.123593][ T6613] software_node_notify+0xe1/0x1b0
[ 209.123614][ T6613] device_add+0x513/0xbf0
[ 209.123636][ T6613] ? iommufd_test+0x2efb/0x56a0
[ 209.123657][ T6613] iommufd_test+0x3350/0x56a0
[ 209.123688][ T6613] ? __pfx_iommufd_test+0x10/0x10
[ 209.123716][ T6613] ? __lock_acquire+0xad5/0xd80
[ 209.123765][ T6613] iommufd_fops_ioctl+0x4fc/0x610
[ 209.123804][ T6613] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 209.123831][ T6613] ? __fget_files+0x2a/0x420
[ 209.123853][ T6613] ? __fget_files+0x2a/0x420
[ 209.123873][ T6613] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 209.123898][ T6613] __se_sys_ioctl+0xf1/0x160
[ 209.123920][ T6613] do_syscall_64+0xf3/0x230
[ 209.123942][ T6613] ? clear_bhb_loop+0x45/0xa0
[ 209.123963][ T6613] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 209.123979][ T6613] RIP: 0033:0x7f9b9698d169
[ 209.123995][ T6613] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 209.124009][ T6613] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 209.124028][ T6613] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 209.124041][ T6613] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 209.124053][ T6613] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 209.124064][ T6613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 209.124074][ T6613] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 209.124100][ T6613]
[ 209.124842][ T6613] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 209.466592][ T6615] FAULT_INJECTION: forcing a failure.
[ 209.466592][ T6615] name failslab, interval 1, probability 0, space 0, times 0
[ 209.482416][ T6615] CPU: 0 UID: 0 PID: 6615 Comm: syz.0.237 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 209.482442][ T6615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 209.482453][ T6615] Call Trace:
[ 209.482461][ T6615]
[ 209.482468][ T6615] dump_stack_lvl+0x241/0x360
[ 209.482499][ T6615] ? __pfx_dump_stack_lvl+0x10/0x10
[ 209.482524][ T6615] ? __pfx__printk+0x10/0x10
[ 209.482552][ T6615] ? __pfx___might_resched+0x10/0x10
[ 209.482578][ T6615] should_fail_ex+0x424/0x570
[ 209.482601][ T6615] should_failslab+0xac/0x100
[ 209.482627][ T6615] kmem_cache_alloc_noprof+0x78/0x390
[ 209.482650][ T6615] ? __kernfs_new_node+0xdf/0x890
[ 209.482672][ T6615] __kernfs_new_node+0xdf/0x890
[ 209.482691][ T6615] ? __lock_acquire+0xad5/0xd80
[ 209.482716][ T6615] ? __pfx___kernfs_new_node+0x10/0x10
[ 209.482751][ T6615] ? kernfs_root+0x1c/0x230
[ 209.482770][ T6615] ? kernfs_root+0x1c/0x230
[ 209.482790][ T6615] kernfs_new_node+0x114/0x220
[ 209.482813][ T6615] kernfs_create_link+0xa5/0x1f0
[ 209.482840][ T6615] sysfs_do_create_link_sd+0x85/0x110
[ 209.482860][ T6615] software_node_notify+0xe1/0x1b0
[ 209.482882][ T6615] device_add+0x513/0xbf0
[ 209.482904][ T6615] ? iommufd_test+0x2efb/0x56a0
[ 209.482926][ T6615] iommufd_test+0x3350/0x56a0
[ 209.482952][ T6615] ? __pfx_iommufd_test+0x10/0x10
[ 209.482980][ T6615] ? __lock_acquire+0xad5/0xd80
[ 209.483030][ T6615] iommufd_fops_ioctl+0x4fc/0x610
[ 209.483057][ T6615] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 209.483084][ T6615] ? __fget_files+0x2a/0x420
[ 209.483106][ T6615] ? __fget_files+0x2a/0x420
[ 209.483126][ T6615] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 209.483151][ T6615] __se_sys_ioctl+0xf1/0x160
[ 209.483173][ T6615] do_syscall_64+0xf3/0x230
[ 209.483195][ T6615] ? clear_bhb_loop+0x45/0xa0
[ 209.483215][ T6615] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 209.483232][ T6615] RIP: 0033:0x7f9b9698d169
[ 209.483247][ T6615] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 209.483261][ T6615] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 209.483281][ T6615] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 209.483294][ T6615] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 209.483305][ T6615] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 209.483316][ T6615] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 209.483327][ T6615] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 209.483354][ T6615]
[ 209.484071][ T6615] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 209.822990][ T6617] FAULT_INJECTION: forcing a failure.
[ 209.822990][ T6617] name failslab, interval 1, probability 0, space 0, times 0
[ 209.835844][ T6617] CPU: 1 UID: 0 PID: 6617 Comm: syz.0.238 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 209.835874][ T6617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 209.835884][ T6617] Call Trace:
[ 209.835891][ T6617]
[ 209.835899][ T6617] dump_stack_lvl+0x241/0x360
[ 209.835929][ T6617] ? __pfx_dump_stack_lvl+0x10/0x10
[ 209.835953][ T6617] ? __pfx__printk+0x10/0x10
[ 209.835978][ T6617] ? __pfx___might_resched+0x10/0x10
[ 209.836003][ T6617] should_fail_ex+0x424/0x570
[ 209.836025][ T6617] should_failslab+0xac/0x100
[ 209.836050][ T6617] kmem_cache_alloc_noprof+0x78/0x390
[ 209.836073][ T6617] ? __kernfs_new_node+0xdf/0x890
[ 209.836094][ T6617] __kernfs_new_node+0xdf/0x890
[ 209.836114][ T6617] ? __lock_acquire+0xad5/0xd80
[ 209.836137][ T6617] ? __pfx___kernfs_new_node+0x10/0x10
[ 209.836165][ T6617] ? kernfs_root+0x1c/0x230
[ 209.836183][ T6617] ? kernfs_root+0x1c/0x230
[ 209.836202][ T6617] kernfs_new_node+0x114/0x220
[ 209.836222][ T6617] kernfs_create_dir_ns+0x43/0x120
[ 209.836244][ T6617] sysfs_create_dir_ns+0x1a2/0x3f0
[ 209.836265][ T6617] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 209.836289][ T6617] kobject_add_internal+0x435/0x8d0
[ 209.836320][ T6617] kobject_add+0x15b/0x230
[ 209.836343][ T6617] ? kobject_put+0x43d/0x480
[ 209.836364][ T6617] ? __pfx_kobject_add+0x10/0x10
[ 209.836387][ T6617] ? bus_get_dev_root+0x127/0x160
[ 209.836406][ T6617] ? get_device_parent+0x405/0x410
[ 209.836424][ T6617] ? device_add+0x318/0xbf0
[ 209.836445][ T6617] device_add+0x4e5/0xbf0
[ 209.836463][ T6617] ? iommufd_test+0x2efb/0x56a0
[ 209.836485][ T6617] iommufd_test+0x3350/0x56a0
[ 209.836514][ T6617] ? __pfx_iommufd_test+0x10/0x10
[ 209.836543][ T6617] ? __lock_acquire+0xad5/0xd80
[ 209.836592][ T6617] iommufd_fops_ioctl+0x4fc/0x610
[ 209.836618][ T6617] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 209.836645][ T6617] ? __fget_files+0x2a/0x420
[ 209.836666][ T6617] ? __fget_files+0x2a/0x420
[ 209.836686][ T6617] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 209.836711][ T6617] __se_sys_ioctl+0xf1/0x160
[ 209.836733][ T6617] do_syscall_64+0xf3/0x230
[ 209.836754][ T6617] ? clear_bhb_loop+0x45/0xa0
[ 209.836775][ T6617] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 209.836792][ T6617] RIP: 0033:0x7f9b9698d169
[ 209.836807][ T6617] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 209.836821][ T6617] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 209.836840][ T6617] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 209.836853][ T6617] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 209.836870][ T6617] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 209.836882][ T6617] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 209.836892][ T6617] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 209.836919][ T6617]
[ 209.836945][ T6617] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 210.190608][ T6619] FAULT_INJECTION: forcing a failure.
[ 210.190608][ T6619] name failslab, interval 1, probability 0, space 0, times 0
[ 210.205053][ T6619] CPU: 0 UID: 0 PID: 6619 Comm: syz.0.239 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 210.205080][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 210.205091][ T6619] Call Trace:
[ 210.205098][ T6619]
[ 210.205106][ T6619] dump_stack_lvl+0x241/0x360
[ 210.205138][ T6619] ? __pfx_dump_stack_lvl+0x10/0x10
[ 210.205162][ T6619] ? __pfx__printk+0x10/0x10
[ 210.205190][ T6619] ? __pfx___might_resched+0x10/0x10
[ 210.205216][ T6619] should_fail_ex+0x424/0x570
[ 210.205240][ T6619] should_failslab+0xac/0x100
[ 210.205265][ T6619] kmem_cache_alloc_noprof+0x78/0x390
[ 210.205288][ T6619] ? __kernfs_new_node+0xdf/0x890
[ 210.205311][ T6619] __kernfs_new_node+0xdf/0x890
[ 210.205328][ T6619] ? __lock_acquire+0xad5/0xd80
[ 210.205354][ T6619] ? __pfx___kernfs_new_node+0x10/0x10
[ 210.205380][ T6619] ? kernfs_root+0x1c/0x230
[ 210.205399][ T6619] ? kernfs_root+0x1c/0x230
[ 210.205419][ T6619] kernfs_new_node+0x114/0x220
[ 210.205442][ T6619] kernfs_create_link+0xa5/0x1f0
[ 210.205468][ T6619] sysfs_do_create_link_sd+0x85/0x110
[ 210.205488][ T6619] software_node_notify+0xe1/0x1b0
[ 210.205510][ T6619] device_add+0x513/0xbf0
[ 210.205531][ T6619] ? iommufd_test+0x2efb/0x56a0
[ 210.205552][ T6619] iommufd_test+0x3350/0x56a0
[ 210.205589][ T6619] ? __pfx_iommufd_test+0x10/0x10
[ 210.205619][ T6619] ? __lock_acquire+0xad5/0xd80
[ 210.205669][ T6619] iommufd_fops_ioctl+0x4fc/0x610
[ 210.205696][ T6619] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 210.205723][ T6619] ? __fget_files+0x2a/0x420
[ 210.205745][ T6619] ? __fget_files+0x2a/0x420
[ 210.205765][ T6619] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 210.205789][ T6619] __se_sys_ioctl+0xf1/0x160
[ 210.205811][ T6619] do_syscall_64+0xf3/0x230
[ 210.205833][ T6619] ? clear_bhb_loop+0x45/0xa0
[ 210.205853][ T6619] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 210.205870][ T6619] RIP: 0033:0x7f9b9698d169
[ 210.205886][ T6619] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 210.205900][ T6619] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 210.205919][ T6619] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 210.205931][ T6619] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 210.205943][ T6619] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 210.205954][ T6619] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 210.205964][ T6619] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 210.205991][ T6619]
[ 210.206734][ T6619] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 210.561560][ T6621] FAULT_INJECTION: forcing a failure.
[ 210.561560][ T6621] name failslab, interval 1, probability 0, space 0, times 0
[ 210.583375][ T6621] CPU: 0 UID: 0 PID: 6621 Comm: syz.0.240 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 210.583403][ T6621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 210.583414][ T6621] Call Trace:
[ 210.583422][ T6621]
[ 210.583430][ T6621] dump_stack_lvl+0x241/0x360
[ 210.583463][ T6621] ? __pfx_dump_stack_lvl+0x10/0x10
[ 210.583487][ T6621] ? __pfx__printk+0x10/0x10
[ 210.583516][ T6621] ? __pfx___might_resched+0x10/0x10
[ 210.583542][ T6621] should_fail_ex+0x424/0x570
[ 210.583566][ T6621] should_failslab+0xac/0x100
[ 210.583591][ T6621] kmem_cache_alloc_noprof+0x78/0x390
[ 210.583614][ T6621] ? __kernfs_new_node+0xdf/0x890
[ 210.583637][ T6621] __kernfs_new_node+0xdf/0x890
[ 210.583664][ T6621] ? __lock_acquire+0xad5/0xd80
[ 210.583690][ T6621] ? __pfx___kernfs_new_node+0x10/0x10
[ 210.583716][ T6621] ? kernfs_root+0x1c/0x230
[ 210.583736][ T6621] ? kernfs_root+0x1c/0x230
[ 210.583756][ T6621] kernfs_new_node+0x114/0x220
[ 210.583778][ T6621] kernfs_create_link+0xa5/0x1f0
[ 210.583805][ T6621] sysfs_do_create_link_sd+0x85/0x110
[ 210.583825][ T6621] software_node_notify+0xe1/0x1b0
[ 210.583847][ T6621] device_add+0x513/0xbf0
[ 210.583869][ T6621] ? iommufd_test+0x2efb/0x56a0
[ 210.583890][ T6621] iommufd_test+0x3350/0x56a0
[ 210.583920][ T6621] ? __pfx_iommufd_test+0x10/0x10
[ 210.583950][ T6621] ? __lock_acquire+0xad5/0xd80
[ 210.583999][ T6621] iommufd_fops_ioctl+0x4fc/0x610
[ 210.584026][ T6621] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 210.584053][ T6621] ? __fget_files+0x2a/0x420
[ 210.584075][ T6621] ? __fget_files+0x2a/0x420
[ 210.584095][ T6621] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 210.584120][ T6621] __se_sys_ioctl+0xf1/0x160
[ 210.584143][ T6621] do_syscall_64+0xf3/0x230
[ 210.584165][ T6621] ? clear_bhb_loop+0x45/0xa0
[ 210.584186][ T6621] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 210.584203][ T6621] RIP: 0033:0x7f9b9698d169
[ 210.584219][ T6621] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 210.584232][ T6621] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 210.584251][ T6621] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 210.584264][ T6621] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 210.584276][ T6621] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 210.584287][ T6621] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 210.584297][ T6621] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 210.584324][ T6621]
[ 210.585069][ T6621] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 210.889491][ T6623] FAULT_INJECTION: forcing a failure.
[ 210.889491][ T6623] name failslab, interval 1, probability 0, space 0, times 0
[ 210.920032][ T6623] CPU: 1 UID: 0 PID: 6623 Comm: syz.0.241 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 210.920066][ T6623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 210.920077][ T6623] Call Trace:
[ 210.920085][ T6623]
[ 210.920093][ T6623] dump_stack_lvl+0x241/0x360
[ 210.920125][ T6623] ? __pfx_dump_stack_lvl+0x10/0x10
[ 210.920149][ T6623] ? __pfx__printk+0x10/0x10
[ 210.920182][ T6623] ? __pfx___might_resched+0x10/0x10
[ 210.920209][ T6623] should_fail_ex+0x424/0x570
[ 210.920233][ T6623] should_failslab+0xac/0x100
[ 210.920259][ T6623] kmem_cache_alloc_noprof+0x78/0x390
[ 210.920282][ T6623] ? __kernfs_new_node+0xdf/0x890
[ 210.920305][ T6623] __kernfs_new_node+0xdf/0x890
[ 210.920323][ T6623] ? __lock_acquire+0xad5/0xd80
[ 210.920348][ T6623] ? __pfx___kernfs_new_node+0x10/0x10
[ 210.920375][ T6623] ? kernfs_root+0x1c/0x230
[ 210.920399][ T6623] ? kernfs_root+0x1c/0x230
[ 210.920418][ T6623] kernfs_new_node+0x114/0x220
[ 210.920442][ T6623] kernfs_create_link+0xa5/0x1f0
[ 210.920468][ T6623] sysfs_do_create_link_sd+0x85/0x110
[ 210.920489][ T6623] software_node_notify+0xe1/0x1b0
[ 210.920512][ T6623] device_add+0x513/0xbf0
[ 210.920533][ T6623] ? iommufd_test+0x2efb/0x56a0
[ 210.920555][ T6623] iommufd_test+0x3350/0x56a0
[ 210.920583][ T6623] ? __pfx_iommufd_test+0x10/0x10
[ 210.920608][ T6623] ? __lock_acquire+0xad5/0xd80
[ 210.920658][ T6623] iommufd_fops_ioctl+0x4fc/0x610
[ 210.920684][ T6623] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 210.920711][ T6623] ? __fget_files+0x2a/0x420
[ 210.920733][ T6623] ? __fget_files+0x2a/0x420
[ 210.920753][ T6623] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 210.920778][ T6623] __se_sys_ioctl+0xf1/0x160
[ 210.920901][ T6623] do_syscall_64+0xf3/0x230
[ 210.920926][ T6623] ? clear_bhb_loop+0x45/0xa0
[ 210.920947][ T6623] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 210.920964][ T6623] RIP: 0033:0x7f9b9698d169
[ 210.920981][ T6623] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 210.920995][ T6623] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 210.921014][ T6623] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 210.921036][ T6623] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 210.921048][ T6623] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 210.921059][ T6623] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 210.921069][ T6623] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 210.921096][ T6623]
[ 210.921843][ T6623] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 211.255329][ T6625] FAULT_INJECTION: forcing a failure.
[ 211.255329][ T6625] name failslab, interval 1, probability 0, space 0, times 0
[ 211.269851][ T6625] CPU: 1 UID: 0 PID: 6625 Comm: syz.0.242 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 211.269876][ T6625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 211.269887][ T6625] Call Trace:
[ 211.269894][ T6625]
[ 211.269902][ T6625] dump_stack_lvl+0x241/0x360
[ 211.269935][ T6625] ? __pfx_dump_stack_lvl+0x10/0x10
[ 211.269959][ T6625] ? __pfx__printk+0x10/0x10
[ 211.269987][ T6625] ? __pfx___might_resched+0x10/0x10
[ 211.270013][ T6625] should_fail_ex+0x424/0x570
[ 211.270037][ T6625] should_failslab+0xac/0x100
[ 211.270062][ T6625] kmem_cache_alloc_noprof+0x78/0x390
[ 211.270170][ T6625] ? __kernfs_new_node+0xdf/0x890
[ 211.270194][ T6625] __kernfs_new_node+0xdf/0x890
[ 211.270214][ T6625] ? __lock_acquire+0xad5/0xd80
[ 211.270237][ T6625] ? __pfx___kernfs_new_node+0x10/0x10
[ 211.270266][ T6625] ? kernfs_root+0x1c/0x230
[ 211.270285][ T6625] ? kernfs_root+0x1c/0x230
[ 211.270304][ T6625] kernfs_new_node+0x114/0x220
[ 211.270328][ T6625] kernfs_create_dir_ns+0x43/0x120
[ 211.270351][ T6625] sysfs_create_dir_ns+0x1a2/0x3f0
[ 211.270372][ T6625] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 211.270403][ T6625] kobject_add_internal+0x435/0x8d0
[ 211.270434][ T6625] kobject_add+0x15b/0x230
[ 211.270458][ T6625] ? kobject_put+0x43d/0x480
[ 211.270479][ T6625] ? __pfx_kobject_add+0x10/0x10
[ 211.270502][ T6625] ? bus_get_dev_root+0x127/0x160
[ 211.270524][ T6625] ? get_device_parent+0x405/0x410
[ 211.270541][ T6625] ? device_add+0x318/0xbf0
[ 211.270560][ T6625] device_add+0x4e5/0xbf0
[ 211.270579][ T6625] ? iommufd_test+0x2efb/0x56a0
[ 211.270597][ T6625] iommufd_test+0x3350/0x56a0
[ 211.270619][ T6625] ? __pfx_iommufd_test+0x10/0x10
[ 211.270646][ T6625] ? __lock_acquire+0xad5/0xd80
[ 211.270695][ T6625] iommufd_fops_ioctl+0x4fc/0x610
[ 211.270721][ T6625] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 211.270749][ T6625] ? __fget_files+0x2a/0x420
[ 211.270771][ T6625] ? __fget_files+0x2a/0x420
[ 211.270792][ T6625] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 211.270824][ T6625] __se_sys_ioctl+0xf1/0x160
[ 211.270846][ T6625] do_syscall_64+0xf3/0x230
[ 211.270868][ T6625] ? clear_bhb_loop+0x45/0xa0
[ 211.270889][ T6625] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 211.270905][ T6625] RIP: 0033:0x7f9b9698d169
[ 211.270921][ T6625] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 211.270932][ T6625] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 211.270950][ T6625] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 211.270962][ T6625] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 211.270973][ T6625] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 211.270983][ T6625] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 211.270993][ T6625] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 211.271020][ T6625]
[ 211.271048][ T6625] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 211.622043][ T6627] FAULT_INJECTION: forcing a failure.
[ 211.622043][ T6627] name failslab, interval 1, probability 0, space 0, times 0
[ 211.638500][ T6627] CPU: 0 UID: 0 PID: 6627 Comm: syz.0.243 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 211.638528][ T6627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 211.638539][ T6627] Call Trace:
[ 211.638547][ T6627]
2025/04/10 19:10:06 executed programs: 229
[ 211.638554][ T6627] dump_stack_lvl+0x241/0x360
[ 211.638586][ T6627] ? __pfx_dump_stack_lvl+0x10/0x10
[ 211.638610][ T6627] ? __pfx__printk+0x10/0x10
[ 211.638637][ T6627] ? __pfx___might_resched+0x10/0x10
[ 211.638664][ T6627] should_fail_ex+0x424/0x570
[ 211.638688][ T6627] should_failslab+0xac/0x100
[ 211.638714][ T6627] kmem_cache_alloc_noprof+0x78/0x390
[ 211.638743][ T6627] ? __kernfs_new_node+0xdf/0x890
[ 211.638766][ T6627] __kernfs_new_node+0xdf/0x890
[ 211.638787][ T6627] ? __lock_acquire+0xad5/0xd80
[ 211.638810][ T6627] ? __pfx___kernfs_new_node+0x10/0x10
[ 211.638836][ T6627] ? kernfs_root+0x1c/0x230
[ 211.638856][ T6627] ? kernfs_root+0x1c/0x230
[ 211.638876][ T6627] kernfs_new_node+0x114/0x220
[ 211.638900][ T6627] kernfs_create_dir_ns+0x43/0x120
[ 211.638923][ T6627] sysfs_create_dir_ns+0x1a2/0x3f0
[ 211.638944][ T6627] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 211.638971][ T6627] kobject_add_internal+0x435/0x8d0
[ 211.639003][ T6627] kobject_add+0x15b/0x230
[ 211.639027][ T6627] ? kobject_put+0x43d/0x480
[ 211.639048][ T6627] ? __pfx_kobject_add+0x10/0x10
[ 211.639072][ T6627] ? bus_get_dev_root+0x127/0x160
[ 211.639093][ T6627] ? get_device_parent+0x405/0x410
[ 211.639112][ T6627] ? device_add+0x318/0xbf0
[ 211.639134][ T6627] device_add+0x4e5/0xbf0
[ 211.639155][ T6627] ? iommufd_test+0x2efb/0x56a0
[ 211.639177][ T6627] iommufd_test+0x3350/0x56a0
[ 211.639207][ T6627] ? __pfx_iommufd_test+0x10/0x10
[ 211.639237][ T6627] ? __lock_acquire+0xad5/0xd80
[ 211.639287][ T6627] iommufd_fops_ioctl+0x4fc/0x610
[ 211.639313][ T6627] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 211.639340][ T6627] ? __fget_files+0x2a/0x420
[ 211.639362][ T6627] ? __fget_files+0x2a/0x420
[ 211.639382][ T6627] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 211.639407][ T6627] __se_sys_ioctl+0xf1/0x160
[ 211.639429][ T6627] do_syscall_64+0xf3/0x230
[ 211.639449][ T6627] ? clear_bhb_loop+0x45/0xa0
[ 211.639471][ T6627] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 211.639487][ T6627] RIP: 0033:0x7f9b9698d169
[ 211.639503][ T6627] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 211.639517][ T6627] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 211.639537][ T6627] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 211.639550][ T6627] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 211.639561][ T6627] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 211.639572][ T6627] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 211.639582][ T6627] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 211.639610][ T6627]
[ 211.639638][ T6627] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 212.021532][ T6629] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 212.051249][ T6631] FAULT_INJECTION: forcing a failure.
[ 212.051249][ T6631] name failslab, interval 1, probability 0, space 0, times 0
[ 212.064288][ T6631] CPU: 0 UID: 0 PID: 6631 Comm: syz.0.245 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 212.064314][ T6631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 212.064325][ T6631] Call Trace:
[ 212.064332][ T6631]
[ 212.064340][ T6631] dump_stack_lvl+0x241/0x360
[ 212.064372][ T6631] ? __pfx_dump_stack_lvl+0x10/0x10
[ 212.064397][ T6631] ? __pfx__printk+0x10/0x10
[ 212.064424][ T6631] ? __pfx___might_resched+0x10/0x10
[ 212.064450][ T6631] should_fail_ex+0x424/0x570
[ 212.064474][ T6631] should_failslab+0xac/0x100
[ 212.064500][ T6631] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 212.064526][ T6631] ? __kernfs_new_node+0xa2/0x890
[ 212.064543][ T6631] ? kernel_text_address+0xa7/0xe0
[ 212.064563][ T6631] kstrdup+0x42/0x100
[ 212.064586][ T6631] __kernfs_new_node+0xa2/0x890
[ 212.064606][ T6631] ? __lock_acquire+0xad5/0xd80
[ 212.064627][ T6631] ? __pfx___kernfs_new_node+0x10/0x10
[ 212.064656][ T6631] ? kernfs_root+0x1c/0x230
[ 212.064675][ T6631] ? kernfs_root+0x1c/0x230
[ 212.064695][ T6631] kernfs_new_node+0x114/0x220
[ 212.064729][ T6631] kernfs_create_dir_ns+0x43/0x120
[ 212.064752][ T6631] sysfs_create_dir_ns+0x1a2/0x3f0
[ 212.064773][ T6631] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 212.064800][ T6631] kobject_add_internal+0x435/0x8d0
[ 212.064832][ T6631] kobject_add+0x15b/0x230
[ 212.064857][ T6631] ? kobject_put+0x43d/0x480
[ 212.064878][ T6631] ? __pfx_kobject_add+0x10/0x10
[ 212.064902][ T6631] ? bus_get_dev_root+0x127/0x160
[ 212.064923][ T6631] ? get_device_parent+0x405/0x410
[ 212.064942][ T6631] ? device_add+0x318/0xbf0
[ 212.064963][ T6631] device_add+0x4e5/0xbf0
[ 212.064983][ T6631] ? iommufd_test+0x2efb/0x56a0
[ 212.065005][ T6631] iommufd_test+0x3350/0x56a0
[ 212.065034][ T6631] ? __pfx_iommufd_test+0x10/0x10
[ 212.065063][ T6631] ? __lock_acquire+0xad5/0xd80
[ 212.065113][ T6631] iommufd_fops_ioctl+0x4fc/0x610
[ 212.065138][ T6631] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 212.065164][ T6631] ? __fget_files+0x2a/0x420
[ 212.065186][ T6631] ? __fget_files+0x2a/0x420
[ 212.065206][ T6631] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 212.065231][ T6631] __se_sys_ioctl+0xf1/0x160
[ 212.065253][ T6631] do_syscall_64+0xf3/0x230
[ 212.065275][ T6631] ? clear_bhb_loop+0x45/0xa0
[ 212.065295][ T6631] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 212.065312][ T6631] RIP: 0033:0x7f9b9698d169
[ 212.065327][ T6631] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 212.065341][ T6631] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 212.065361][ T6631] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 212.065374][ T6631] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 212.065385][ T6631] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 212.065418][ T6631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 212.065429][ T6631] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 212.065456][ T6631]
[ 212.065467][ T6631] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 212.436304][ T6633] FAULT_INJECTION: forcing a failure.
[ 212.436304][ T6633] name failslab, interval 1, probability 0, space 0, times 0
[ 212.486300][ T6633] CPU: 1 UID: 0 PID: 6633 Comm: syz.0.246 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 212.486328][ T6633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 212.486339][ T6633] Call Trace:
[ 212.486347][ T6633]
[ 212.486355][ T6633] dump_stack_lvl+0x241/0x360
[ 212.486387][ T6633] ? __pfx_dump_stack_lvl+0x10/0x10
[ 212.486412][ T6633] ? __pfx__printk+0x10/0x10
[ 212.486447][ T6633] ? __pfx___might_resched+0x10/0x10
[ 212.486473][ T6633] should_fail_ex+0x424/0x570
[ 212.486502][ T6633] should_failslab+0xac/0x100
[ 212.486527][ T6633] kmem_cache_alloc_noprof+0x78/0x390
[ 212.486550][ T6633] ? __kernfs_new_node+0xdf/0x890
[ 212.486574][ T6633] __kernfs_new_node+0xdf/0x890
[ 212.486592][ T6633] ? __lock_acquire+0xad5/0xd80
[ 212.486617][ T6633] ? __pfx___kernfs_new_node+0x10/0x10
[ 212.486644][ T6633] ? kernfs_root+0x1c/0x230
[ 212.486663][ T6633] ? kernfs_root+0x1c/0x230
[ 212.486680][ T6633] kernfs_new_node+0x114/0x220
[ 212.486705][ T6633] kernfs_create_link+0xa5/0x1f0
[ 212.486731][ T6633] sysfs_do_create_link_sd+0x85/0x110
[ 212.486751][ T6633] software_node_notify+0xe1/0x1b0
[ 212.486773][ T6633] device_add+0x513/0xbf0
[ 212.486794][ T6633] ? iommufd_test+0x2efb/0x56a0
[ 212.486814][ T6633] iommufd_test+0x3350/0x56a0
[ 212.486845][ T6633] ? __pfx_iommufd_test+0x10/0x10
[ 212.486874][ T6633] ? __lock_acquire+0xad5/0xd80
[ 212.486924][ T6633] iommufd_fops_ioctl+0x4fc/0x610
[ 212.486950][ T6633] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 212.486978][ T6633] ? __fget_files+0x2a/0x420
[ 212.487000][ T6633] ? __fget_files+0x2a/0x420
[ 212.487020][ T6633] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 212.487045][ T6633] __se_sys_ioctl+0xf1/0x160
[ 212.487067][ T6633] do_syscall_64+0xf3/0x230
[ 212.487088][ T6633] ? clear_bhb_loop+0x45/0xa0
[ 212.487109][ T6633] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 212.487126][ T6633] RIP: 0033:0x7f9b9698d169
[ 212.487141][ T6633] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 212.487155][ T6633] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 212.487174][ T6633] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 212.487187][ T6633] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 212.487199][ T6633] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 212.487210][ T6633] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 212.487220][ T6633] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 212.487248][ T6633]
[ 212.761877][ T6633] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 212.795740][ T6635] FAULT_INJECTION: forcing a failure.
[ 212.795740][ T6635] name failslab, interval 1, probability 0, space 0, times 0
[ 212.808607][ T6635] CPU: 1 UID: 0 PID: 6635 Comm: syz.0.247 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 212.808633][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 212.808644][ T6635] Call Trace:
[ 212.808652][ T6635]
[ 212.808667][ T6635] dump_stack_lvl+0x241/0x360
[ 212.808698][ T6635] ? __pfx_dump_stack_lvl+0x10/0x10
[ 212.808723][ T6635] ? __pfx__printk+0x10/0x10
[ 212.808751][ T6635] ? __pfx___might_resched+0x10/0x10
[ 212.808777][ T6635] should_fail_ex+0x424/0x570
[ 212.808801][ T6635] should_failslab+0xac/0x100
[ 212.808826][ T6635] kmem_cache_alloc_noprof+0x78/0x390
[ 212.808849][ T6635] ? __kernfs_new_node+0xdf/0x890
[ 212.808873][ T6635] __kernfs_new_node+0xdf/0x890
[ 212.808893][ T6635] ? __lock_acquire+0xad5/0xd80
[ 212.808916][ T6635] ? __pfx___kernfs_new_node+0x10/0x10
[ 212.808946][ T6635] ? kernfs_root+0x1c/0x230
[ 212.808964][ T6635] ? kernfs_root+0x1c/0x230
[ 212.808982][ T6635] kernfs_new_node+0x114/0x220
[ 212.809006][ T6635] kernfs_create_dir_ns+0x43/0x120
[ 212.809029][ T6635] sysfs_create_dir_ns+0x1a2/0x3f0
[ 212.809049][ T6635] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 212.809075][ T6635] kobject_add_internal+0x435/0x8d0
[ 212.809106][ T6635] kobject_add+0x15b/0x230
[ 212.809130][ T6635] ? kobject_put+0x43d/0x480
[ 212.809151][ T6635] ? __pfx_kobject_add+0x10/0x10
[ 212.809175][ T6635] ? bus_get_dev_root+0x127/0x160
[ 212.809196][ T6635] ? get_device_parent+0x405/0x410
[ 212.809215][ T6635] ? device_add+0x318/0xbf0
[ 212.809236][ T6635] device_add+0x4e5/0xbf0
[ 212.809256][ T6635] ? iommufd_test+0x2efb/0x56a0
[ 212.809277][ T6635] iommufd_test+0x3350/0x56a0
[ 212.809307][ T6635] ? __pfx_iommufd_test+0x10/0x10
[ 212.809336][ T6635] ? __lock_acquire+0xad5/0xd80
[ 212.809385][ T6635] iommufd_fops_ioctl+0x4fc/0x610
[ 212.809412][ T6635] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 212.809439][ T6635] ? __fget_files+0x2a/0x420
[ 212.809460][ T6635] ? __fget_files+0x2a/0x420
[ 212.809480][ T6635] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 212.809506][ T6635] __se_sys_ioctl+0xf1/0x160
[ 212.809527][ T6635] do_syscall_64+0xf3/0x230
[ 212.809548][ T6635] ? clear_bhb_loop+0x45/0xa0
[ 212.809569][ T6635] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 212.809592][ T6635] RIP: 0033:0x7f9b9698d169
[ 212.809609][ T6635] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 212.809623][ T6635] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 212.809643][ T6635] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 212.809656][ T6635] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 212.809666][ T6635] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 212.809678][ T6635] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 212.809689][ T6635] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 212.809716][ T6635]
[ 212.809742][ T6635] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 213.165814][ T6637] FAULT_INJECTION: forcing a failure.
[ 213.165814][ T6637] name failslab, interval 1, probability 0, space 0, times 0
[ 213.227033][ T6637] CPU: 0 UID: 0 PID: 6637 Comm: syz.0.248 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 213.227061][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 213.227073][ T6637] Call Trace:
[ 213.227080][ T6637]
[ 213.227089][ T6637] dump_stack_lvl+0x241/0x360
[ 213.227121][ T6637] ? __pfx_dump_stack_lvl+0x10/0x10
[ 213.227146][ T6637] ? __pfx__printk+0x10/0x10
[ 213.227174][ T6637] ? __pfx___might_resched+0x10/0x10
[ 213.227200][ T6637] should_fail_ex+0x424/0x570
[ 213.227224][ T6637] should_failslab+0xac/0x100
[ 213.227250][ T6637] kmem_cache_alloc_noprof+0x78/0x390
[ 213.227272][ T6637] ? __kernfs_new_node+0xdf/0x890
[ 213.227296][ T6637] __kernfs_new_node+0xdf/0x890
[ 213.227314][ T6637] ? __lock_acquire+0xad5/0xd80
[ 213.227346][ T6637] ? __pfx___kernfs_new_node+0x10/0x10
[ 213.227373][ T6637] ? kernfs_root+0x1c/0x230
[ 213.227392][ T6637] ? kernfs_root+0x1c/0x230
[ 213.227412][ T6637] kernfs_new_node+0x114/0x220
[ 213.227436][ T6637] kernfs_create_link+0xa5/0x1f0
[ 213.227463][ T6637] sysfs_do_create_link_sd+0x85/0x110
[ 213.227483][ T6637] software_node_notify+0xe1/0x1b0
[ 213.227505][ T6637] device_add+0x513/0xbf0
[ 213.227527][ T6637] ? iommufd_test+0x2efb/0x56a0
[ 213.227548][ T6637] iommufd_test+0x3350/0x56a0
[ 213.227578][ T6637] ? __pfx_iommufd_test+0x10/0x10
[ 213.227607][ T6637] ? __lock_acquire+0xad5/0xd80
[ 213.227658][ T6637] iommufd_fops_ioctl+0x4fc/0x610
[ 213.227682][ T6637] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 213.227707][ T6637] ? __fget_files+0x2a/0x420
[ 213.227729][ T6637] ? __fget_files+0x2a/0x420
[ 213.227746][ T6637] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 213.227771][ T6637] __se_sys_ioctl+0xf1/0x160
[ 213.227794][ T6637] do_syscall_64+0xf3/0x230
[ 213.227816][ T6637] ? clear_bhb_loop+0x45/0xa0
[ 213.227836][ T6637] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 213.227852][ T6637] RIP: 0033:0x7f9b9698d169
[ 213.227868][ T6637] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 213.227882][ T6637] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 213.227901][ T6637] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 213.227914][ T6637] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 213.227925][ T6637] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 213.227936][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 213.227947][ T6637] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 213.227975][ T6637]
[ 213.499011][ T6637] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 213.595037][ T6639] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 213.645129][ T6641] FAULT_INJECTION: forcing a failure.
[ 213.645129][ T6641] name failslab, interval 1, probability 0, space 0, times 0
[ 213.660764][ T6641] CPU: 1 UID: 0 PID: 6641 Comm: syz.0.250 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 213.660791][ T6641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 213.660803][ T6641] Call Trace:
[ 213.660811][ T6641]
[ 213.660819][ T6641] dump_stack_lvl+0x241/0x360
[ 213.660851][ T6641] ? __pfx_dump_stack_lvl+0x10/0x10
[ 213.660876][ T6641] ? __pfx__printk+0x10/0x10
[ 213.660904][ T6641] ? __pfx___might_resched+0x10/0x10
[ 213.660930][ T6641] should_fail_ex+0x424/0x570
[ 213.660951][ T6641] should_failslab+0xac/0x100
[ 213.660977][ T6641] kmem_cache_alloc_noprof+0x78/0x390
[ 213.661000][ T6641] ? __kernfs_new_node+0xdf/0x890
[ 213.661023][ T6641] __kernfs_new_node+0xdf/0x890
[ 213.661043][ T6641] ? __lock_acquire+0xad5/0xd80
[ 213.661065][ T6641] ? __pfx___kernfs_new_node+0x10/0x10
[ 213.661093][ T6641] ? kernfs_root+0x1c/0x230
[ 213.661111][ T6641] ? kernfs_root+0x1c/0x230
[ 213.661130][ T6641] kernfs_new_node+0x114/0x220
[ 213.661154][ T6641] kernfs_create_dir_ns+0x43/0x120
[ 213.661177][ T6641] sysfs_create_dir_ns+0x1a2/0x3f0
[ 213.661197][ T6641] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 213.661224][ T6641] kobject_add_internal+0x435/0x8d0
[ 213.661256][ T6641] kobject_add+0x15b/0x230
[ 213.661289][ T6641] ? kobject_put+0x43d/0x480
[ 213.661310][ T6641] ? __pfx_kobject_add+0x10/0x10
[ 213.661333][ T6641] ? bus_get_dev_root+0x127/0x160
[ 213.661354][ T6641] ? get_device_parent+0x405/0x410
[ 213.661372][ T6641] ? device_add+0x318/0xbf0
[ 213.661394][ T6641] device_add+0x4e5/0xbf0
[ 213.661414][ T6641] ? iommufd_test+0x2efb/0x56a0
[ 213.661435][ T6641] iommufd_test+0x3350/0x56a0
[ 213.661465][ T6641] ? __pfx_iommufd_test+0x10/0x10
[ 213.661492][ T6641] ? __lock_acquire+0xad5/0xd80
[ 213.661584][ T6641] iommufd_fops_ioctl+0x4fc/0x610
[ 213.661616][ T6641] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 213.661644][ T6641] ? __fget_files+0x2a/0x420
[ 213.661665][ T6641] ? __fget_files+0x2a/0x420
[ 213.661685][ T6641] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 213.661710][ T6641] __se_sys_ioctl+0xf1/0x160
[ 213.661733][ T6641] do_syscall_64+0xf3/0x230
[ 213.661754][ T6641] ? clear_bhb_loop+0x45/0xa0
[ 213.661775][ T6641] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 213.661791][ T6641] RIP: 0033:0x7f9b9698d169
[ 213.661808][ T6641] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 213.661822][ T6641] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 213.661840][ T6641] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 213.661853][ T6641] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 213.661865][ T6641] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 213.661876][ T6641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 213.661886][ T6641] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 213.661915][ T6641]
[ 213.661942][ T6641] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 214.044607][ T6643] FAULT_INJECTION: forcing a failure.
[ 214.044607][ T6643] name failslab, interval 1, probability 0, space 0, times 0
[ 214.057531][ T6643] CPU: 0 UID: 0 PID: 6643 Comm: syz.0.251 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 214.057556][ T6643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 214.057567][ T6643] Call Trace:
[ 214.057575][ T6643]
[ 214.057582][ T6643] dump_stack_lvl+0x241/0x360
[ 214.057615][ T6643] ? __pfx_dump_stack_lvl+0x10/0x10
[ 214.057639][ T6643] ? __pfx__printk+0x10/0x10
[ 214.057669][ T6643] ? __pfx___might_resched+0x10/0x10
[ 214.057694][ T6643] should_fail_ex+0x424/0x570
[ 214.057717][ T6643] should_failslab+0xac/0x100
[ 214.057743][ T6643] kmem_cache_alloc_noprof+0x78/0x390
[ 214.057765][ T6643] ? __kernfs_new_node+0xdf/0x890
[ 214.057789][ T6643] __kernfs_new_node+0xdf/0x890
[ 214.057807][ T6643] ? __lock_acquire+0xad5/0xd80
[ 214.057832][ T6643] ? __pfx___kernfs_new_node+0x10/0x10
[ 214.057859][ T6643] ? kernfs_root+0x1c/0x230
[ 214.057878][ T6643] ? kernfs_root+0x1c/0x230
[ 214.057898][ T6643] kernfs_new_node+0x114/0x220
[ 214.057922][ T6643] kernfs_create_link+0xa5/0x1f0
[ 214.057948][ T6643] sysfs_do_create_link_sd+0x85/0x110
[ 214.057968][ T6643] software_node_notify+0xe1/0x1b0
[ 214.057990][ T6643] device_add+0x513/0xbf0
[ 214.058011][ T6643] ? iommufd_test+0x2efb/0x56a0
[ 214.058031][ T6643] iommufd_test+0x3350/0x56a0
[ 214.058061][ T6643] ? __pfx_iommufd_test+0x10/0x10
[ 214.058091][ T6643] ? __lock_acquire+0xad5/0xd80
[ 214.058134][ T6643] iommufd_fops_ioctl+0x4fc/0x610
[ 214.058161][ T6643] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 214.058200][ T6643] ? __fget_files+0x2a/0x420
[ 214.058221][ T6643] ? __fget_files+0x2a/0x420
[ 214.058242][ T6643] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 214.058266][ T6643] __se_sys_ioctl+0xf1/0x160
[ 214.058290][ T6643] do_syscall_64+0xf3/0x230
[ 214.058316][ T6643] ? clear_bhb_loop+0x45/0xa0
[ 214.058338][ T6643] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 214.058354][ T6643] RIP: 0033:0x7f9b9698d169
[ 214.058371][ T6643] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 214.058384][ T6643] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 214.058404][ T6643] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 214.058416][ T6643] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 214.058428][ T6643] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 214.058444][ T6643] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 214.058455][ T6643] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 214.058483][ T6643]
[ 214.328364][ T6643] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 214.366970][ T6645] FAULT_INJECTION: forcing a failure.
[ 214.366970][ T6645] name failslab, interval 1, probability 0, space 0, times 0
[ 214.385547][ T6645] CPU: 1 UID: 0 PID: 6645 Comm: syz.0.252 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 214.385574][ T6645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 214.385593][ T6645] Call Trace:
[ 214.385602][ T6645]
[ 214.385610][ T6645] dump_stack_lvl+0x241/0x360
[ 214.385642][ T6645] ? __pfx_dump_stack_lvl+0x10/0x10
[ 214.385666][ T6645] ? __pfx__printk+0x10/0x10
[ 214.385695][ T6645] ? __pfx___might_resched+0x10/0x10
[ 214.385720][ T6645] should_fail_ex+0x424/0x570
[ 214.385744][ T6645] should_failslab+0xac/0x100
[ 214.385770][ T6645] kmem_cache_alloc_noprof+0x78/0x390
[ 214.385793][ T6645] ? __kernfs_new_node+0xdf/0x890
[ 214.385817][ T6645] __kernfs_new_node+0xdf/0x890
[ 214.385835][ T6645] ? __lock_acquire+0xad5/0xd80
[ 214.385859][ T6645] ? __pfx___kernfs_new_node+0x10/0x10
[ 214.385886][ T6645] ? kernfs_root+0x1c/0x230
[ 214.385905][ T6645] ? kernfs_root+0x1c/0x230
[ 214.385924][ T6645] kernfs_new_node+0x114/0x220
[ 214.385948][ T6645] kernfs_create_link+0xa5/0x1f0
[ 214.385974][ T6645] sysfs_do_create_link_sd+0x85/0x110
[ 214.385994][ T6645] software_node_notify+0xe1/0x1b0
[ 214.386016][ T6645] device_add+0x513/0xbf0
[ 214.386037][ T6645] ? iommufd_test+0x2efb/0x56a0
[ 214.386058][ T6645] iommufd_test+0x3350/0x56a0
[ 214.386094][ T6645] ? __pfx_iommufd_test+0x10/0x10
[ 214.386123][ T6645] ? __lock_acquire+0xad5/0xd80
[ 214.386183][ T6645] iommufd_fops_ioctl+0x4fc/0x610
[ 214.386211][ T6645] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 214.386238][ T6645] ? __fget_files+0x2a/0x420
[ 214.386260][ T6645] ? __fget_files+0x2a/0x420
[ 214.386280][ T6645] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 214.386304][ T6645] __se_sys_ioctl+0xf1/0x160
[ 214.386326][ T6645] do_syscall_64+0xf3/0x230
[ 214.386348][ T6645] ? clear_bhb_loop+0x45/0xa0
[ 214.386369][ T6645] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 214.386385][ T6645] RIP: 0033:0x7f9b9698d169
[ 214.386402][ T6645] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 214.386415][ T6645] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 214.386434][ T6645] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 214.386447][ T6645] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 214.386458][ T6645] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 214.386469][ T6645] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 214.386480][ T6645] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 214.386507][ T6645]
[ 214.387255][ T6645] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 214.745982][ T6647] FAULT_INJECTION: forcing a failure.
[ 214.745982][ T6647] name failslab, interval 1, probability 0, space 0, times 0
[ 214.764063][ T6647] CPU: 1 UID: 0 PID: 6647 Comm: syz.0.253 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 214.764089][ T6647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 214.764102][ T6647] Call Trace:
[ 214.764109][ T6647]
[ 214.764118][ T6647] dump_stack_lvl+0x241/0x360
[ 214.764149][ T6647] ? __pfx_dump_stack_lvl+0x10/0x10
[ 214.764174][ T6647] ? __pfx__printk+0x10/0x10
[ 214.764209][ T6647] ? __pfx___might_resched+0x10/0x10
[ 214.764235][ T6647] should_fail_ex+0x424/0x570
[ 214.764258][ T6647] should_failslab+0xac/0x100
[ 214.764284][ T6647] kmem_cache_alloc_noprof+0x78/0x390
[ 214.764306][ T6647] ? __kernfs_new_node+0xdf/0x890
[ 214.764330][ T6647] __kernfs_new_node+0xdf/0x890
[ 214.764348][ T6647] ? __lock_acquire+0xad5/0xd80
[ 214.764372][ T6647] ? __pfx___kernfs_new_node+0x10/0x10
[ 214.764399][ T6647] ? kernfs_root+0x1c/0x230
[ 214.764418][ T6647] ? kernfs_root+0x1c/0x230
[ 214.764437][ T6647] kernfs_new_node+0x114/0x220
[ 214.764460][ T6647] kernfs_create_link+0xa5/0x1f0
[ 214.764487][ T6647] sysfs_do_create_link_sd+0x85/0x110
[ 214.764507][ T6647] software_node_notify+0xe1/0x1b0
[ 214.764531][ T6647] device_add+0x513/0xbf0
[ 214.764552][ T6647] ? iommufd_test+0x2efb/0x56a0
[ 214.764574][ T6647] iommufd_test+0x3350/0x56a0
[ 214.764604][ T6647] ? __pfx_iommufd_test+0x10/0x10
[ 214.764634][ T6647] ? __lock_acquire+0xad5/0xd80
[ 214.764683][ T6647] iommufd_fops_ioctl+0x4fc/0x610
[ 214.764710][ T6647] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 214.764737][ T6647] ? __fget_files+0x2a/0x420
[ 214.764759][ T6647] ? __fget_files+0x2a/0x420
[ 214.764778][ T6647] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 214.764803][ T6647] __se_sys_ioctl+0xf1/0x160
[ 214.764830][ T6647] do_syscall_64+0xf3/0x230
[ 214.764851][ T6647] ? clear_bhb_loop+0x45/0xa0
[ 214.764875][ T6647] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 214.764892][ T6647] RIP: 0033:0x7f9b9698d169
[ 214.764908][ T6647] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 214.764921][ T6647] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 214.764941][ T6647] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 214.764953][ T6647] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 214.764964][ T6647] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 214.764975][ T6647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 214.764986][ T6647] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 214.765013][ T6647]
[ 214.765763][ T6647] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 215.071192][ T6649] FAULT_INJECTION: forcing a failure.
[ 215.071192][ T6649] name failslab, interval 1, probability 0, space 0, times 0
[ 215.086510][ T6649] CPU: 1 UID: 0 PID: 6649 Comm: syz.0.254 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 215.086536][ T6649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 215.086547][ T6649] Call Trace:
[ 215.086555][ T6649]
[ 215.086563][ T6649] dump_stack_lvl+0x241/0x360
[ 215.086601][ T6649] ? __pfx_dump_stack_lvl+0x10/0x10
[ 215.086625][ T6649] ? __pfx__printk+0x10/0x10
[ 215.086653][ T6649] ? __pfx___might_resched+0x10/0x10
[ 215.086680][ T6649] should_fail_ex+0x424/0x570
[ 215.086703][ T6649] should_failslab+0xac/0x100
[ 215.086729][ T6649] kmem_cache_alloc_noprof+0x78/0x390
[ 215.086753][ T6649] ? __kernfs_new_node+0xdf/0x890
[ 215.086776][ T6649] __kernfs_new_node+0xdf/0x890
[ 215.086796][ T6649] ? __lock_acquire+0xad5/0xd80
[ 215.086820][ T6649] ? __pfx___kernfs_new_node+0x10/0x10
[ 215.086849][ T6649] ? kernfs_root+0x1c/0x230
[ 215.086867][ T6649] ? kernfs_root+0x1c/0x230
[ 215.086888][ T6649] kernfs_new_node+0x114/0x220
[ 215.086911][ T6649] kernfs_create_dir_ns+0x43/0x120
[ 215.086935][ T6649] sysfs_create_dir_ns+0x1a2/0x3f0
[ 215.086955][ T6649] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 215.086982][ T6649] kobject_add_internal+0x435/0x8d0
[ 215.087028][ T6649] kobject_add+0x15b/0x230
[ 215.087052][ T6649] ? kobject_put+0x43d/0x480
[ 215.087073][ T6649] ? __pfx_kobject_add+0x10/0x10
[ 215.087097][ T6649] ? bus_get_dev_root+0x127/0x160
[ 215.087119][ T6649] ? get_device_parent+0x405/0x410
[ 215.087136][ T6649] ? device_add+0x318/0xbf0
[ 215.087158][ T6649] device_add+0x4e5/0xbf0
[ 215.087179][ T6649] ? iommufd_test+0x2efb/0x56a0
[ 215.087200][ T6649] iommufd_test+0x3350/0x56a0
[ 215.087235][ T6649] ? __pfx_iommufd_test+0x10/0x10
[ 215.087264][ T6649] ? __lock_acquire+0xad5/0xd80
[ 215.087314][ T6649] iommufd_fops_ioctl+0x4fc/0x610
[ 215.087341][ T6649] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 215.087368][ T6649] ? __fget_files+0x2a/0x420
[ 215.087399][ T6649] ? __fget_files+0x2a/0x420
[ 215.087419][ T6649] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 215.087443][ T6649] __se_sys_ioctl+0xf1/0x160
[ 215.087466][ T6649] do_syscall_64+0xf3/0x230
[ 215.087487][ T6649] ? clear_bhb_loop+0x45/0xa0
[ 215.087508][ T6649] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 215.087525][ T6649] RIP: 0033:0x7f9b9698d169
[ 215.087541][ T6649] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 215.087555][ T6649] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 215.087579][ T6649] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 215.087592][ T6649] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 215.087603][ T6649] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 215.087615][ T6649] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 215.087626][ T6649] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 215.087656][ T6649]
[ 215.400807][ T6649] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 215.445321][ T6651] FAULT_INJECTION: forcing a failure.
[ 215.445321][ T6651] name failslab, interval 1, probability 0, space 0, times 0
[ 215.462886][ T6651] CPU: 0 UID: 0 PID: 6651 Comm: syz.0.255 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 215.462914][ T6651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 215.462924][ T6651] Call Trace:
[ 215.462932][ T6651]
[ 215.462941][ T6651] dump_stack_lvl+0x241/0x360
[ 215.462973][ T6651] ? __pfx_dump_stack_lvl+0x10/0x10
[ 215.462998][ T6651] ? __pfx__printk+0x10/0x10
[ 215.463025][ T6651] ? __pfx___might_resched+0x10/0x10
[ 215.463052][ T6651] should_fail_ex+0x424/0x570
[ 215.463075][ T6651] should_failslab+0xac/0x100
[ 215.463101][ T6651] kmem_cache_alloc_noprof+0x78/0x390
[ 215.463125][ T6651] ? __kernfs_new_node+0xdf/0x890
[ 215.463155][ T6651] __kernfs_new_node+0xdf/0x890
[ 215.463176][ T6651] ? __lock_acquire+0xad5/0xd80
[ 215.463199][ T6651] ? __pfx___kernfs_new_node+0x10/0x10
[ 215.463227][ T6651] ? kernfs_root+0x1c/0x230
[ 215.463245][ T6651] ? kernfs_root+0x1c/0x230
[ 215.463265][ T6651] kernfs_new_node+0x114/0x220
[ 215.463289][ T6651] kernfs_create_dir_ns+0x43/0x120
[ 215.463312][ T6651] sysfs_create_dir_ns+0x1a2/0x3f0
[ 215.463334][ T6651] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 215.463360][ T6651] kobject_add_internal+0x435/0x8d0
[ 215.463391][ T6651] kobject_add+0x15b/0x230
[ 215.463415][ T6651] ? kobject_put+0x43d/0x480
[ 215.463436][ T6651] ? __pfx_kobject_add+0x10/0x10
[ 215.463459][ T6651] ? bus_get_dev_root+0x127/0x160
[ 215.463481][ T6651] ? get_device_parent+0x405/0x410
[ 215.463499][ T6651] ? device_add+0x318/0xbf0
[ 215.463521][ T6651] device_add+0x4e5/0xbf0
[ 215.463542][ T6651] ? iommufd_test+0x2efb/0x56a0
[ 215.463563][ T6651] iommufd_test+0x3350/0x56a0
[ 215.463594][ T6651] ? __pfx_iommufd_test+0x10/0x10
[ 215.463623][ T6651] ? __lock_acquire+0xad5/0xd80
[ 215.463672][ T6651] iommufd_fops_ioctl+0x4fc/0x610
[ 215.463699][ T6651] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 215.463724][ T6651] ? __fget_files+0x2a/0x420
[ 215.463745][ T6651] ? __fget_files+0x2a/0x420
[ 215.463765][ T6651] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 215.463790][ T6651] __se_sys_ioctl+0xf1/0x160
[ 215.463812][ T6651] do_syscall_64+0xf3/0x230
[ 215.463833][ T6651] ? clear_bhb_loop+0x45/0xa0
[ 215.463854][ T6651] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 215.463870][ T6651] RIP: 0033:0x7f9b9698d169
[ 215.463886][ T6651] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 215.463900][ T6651] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 215.463919][ T6651] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 215.463932][ T6651] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 215.463943][ T6651] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 215.463953][ T6651] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 215.463964][ T6651] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 215.463992][ T6651]
[ 215.464017][ T6651] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 215.873096][ T6653] FAULT_INJECTION: forcing a failure.
[ 215.873096][ T6653] name failslab, interval 1, probability 0, space 0, times 0
[ 215.899346][ T6653] CPU: 0 UID: 0 PID: 6653 Comm: syz.0.256 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 215.899373][ T6653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 215.899384][ T6653] Call Trace:
[ 215.899392][ T6653]
[ 215.899400][ T6653] dump_stack_lvl+0x241/0x360
[ 215.899433][ T6653] ? __pfx_dump_stack_lvl+0x10/0x10
[ 215.899457][ T6653] ? __pfx__printk+0x10/0x10
[ 215.899482][ T6653] ? __pfx___might_resched+0x10/0x10
[ 215.899505][ T6653] should_fail_ex+0x424/0x570
[ 215.899527][ T6653] should_failslab+0xac/0x100
[ 215.899551][ T6653] kmem_cache_alloc_noprof+0x78/0x390
[ 215.899572][ T6653] ? __kernfs_new_node+0xdf/0x890
[ 215.899595][ T6653] __kernfs_new_node+0xdf/0x890
[ 215.899612][ T6653] ? __lock_acquire+0xad5/0xd80
[ 215.899635][ T6653] ? __pfx___kernfs_new_node+0x10/0x10
[ 215.899662][ T6653] ? kernfs_root+0x1c/0x230
[ 215.899681][ T6653] ? kernfs_root+0x1c/0x230
[ 215.899701][ T6653] kernfs_new_node+0x114/0x220
[ 215.899724][ T6653] kernfs_create_link+0xa5/0x1f0
[ 215.899751][ T6653] sysfs_do_create_link_sd+0x85/0x110
[ 215.899771][ T6653] software_node_notify+0xe1/0x1b0
[ 215.899793][ T6653] device_add+0x513/0xbf0
[ 215.899815][ T6653] ? iommufd_test+0x2efb/0x56a0
[ 215.899835][ T6653] iommufd_test+0x3350/0x56a0
[ 215.899866][ T6653] ? __pfx_iommufd_test+0x10/0x10
[ 215.899895][ T6653] ? __lock_acquire+0xad5/0xd80
[ 215.899944][ T6653] iommufd_fops_ioctl+0x4fc/0x610
[ 215.899970][ T6653] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 215.899996][ T6653] ? __fget_files+0x2a/0x420
[ 215.900016][ T6653] ? __fget_files+0x2a/0x420
[ 215.900035][ T6653] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 215.900060][ T6653] __se_sys_ioctl+0xf1/0x160
[ 215.900082][ T6653] do_syscall_64+0xf3/0x230
[ 215.900112][ T6653] ? clear_bhb_loop+0x45/0xa0
[ 215.900134][ T6653] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 215.900150][ T6653] RIP: 0033:0x7f9b9698d169
[ 215.900166][ T6653] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 215.900181][ T6653] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 215.900199][ T6653] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 215.900212][ T6653] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 215.900223][ T6653] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 215.900234][ T6653] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 215.900245][ T6653] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 215.900273][ T6653]
[ 215.901056][ T6653] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 216.206542][ T6655] FAULT_INJECTION: forcing a failure.
[ 216.206542][ T6655] name failslab, interval 1, probability 0, space 0, times 0
[ 216.222156][ T6655] CPU: 0 UID: 0 PID: 6655 Comm: syz.0.257 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 216.222181][ T6655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 216.222192][ T6655] Call Trace:
[ 216.222200][ T6655]
[ 216.222208][ T6655] dump_stack_lvl+0x241/0x360
[ 216.222239][ T6655] ? __pfx_dump_stack_lvl+0x10/0x10
[ 216.222271][ T6655] ? __pfx__printk+0x10/0x10
[ 216.222298][ T6655] ? __pfx___might_resched+0x10/0x10
[ 216.222325][ T6655] should_fail_ex+0x424/0x570
[ 216.222349][ T6655] should_failslab+0xac/0x100
[ 216.222374][ T6655] kmem_cache_alloc_noprof+0x78/0x390
[ 216.222397][ T6655] ? __kernfs_new_node+0xdf/0x890
[ 216.222421][ T6655] __kernfs_new_node+0xdf/0x890
[ 216.222438][ T6655] ? __lock_acquire+0xad5/0xd80
[ 216.222464][ T6655] ? __pfx___kernfs_new_node+0x10/0x10
[ 216.222490][ T6655] ? kernfs_root+0x1c/0x230
[ 216.222509][ T6655] ? kernfs_root+0x1c/0x230
[ 216.222529][ T6655] kernfs_new_node+0x114/0x220
[ 216.222553][ T6655] kernfs_create_link+0xa5/0x1f0
[ 216.222577][ T6655] sysfs_do_create_link_sd+0x85/0x110
[ 216.222595][ T6655] software_node_notify+0xe1/0x1b0
[ 216.222615][ T6655] device_add+0x513/0xbf0
[ 216.222636][ T6655] ? iommufd_test+0x2efb/0x56a0
[ 216.222658][ T6655] iommufd_test+0x3350/0x56a0
[ 216.222687][ T6655] ? __pfx_iommufd_test+0x10/0x10
[ 216.222717][ T6655] ? __lock_acquire+0xad5/0xd80
[ 216.222767][ T6655] iommufd_fops_ioctl+0x4fc/0x610
[ 216.222793][ T6655] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 216.222821][ T6655] ? __fget_files+0x2a/0x420
[ 216.222843][ T6655] ? __fget_files+0x2a/0x420
[ 216.222864][ T6655] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 216.222888][ T6655] __se_sys_ioctl+0xf1/0x160
[ 216.222911][ T6655] do_syscall_64+0xf3/0x230
[ 216.222950][ T6655] ? clear_bhb_loop+0x45/0xa0
[ 216.222971][ T6655] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 216.222987][ T6655] RIP: 0033:0x7f9b9698d169
[ 216.223003][ T6655] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 216.223017][ T6655] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 216.223036][ T6655] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 216.223048][ T6655] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 216.223060][ T6655] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 216.223071][ T6655] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 216.223081][ T6655] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 216.223106][ T6655]
[ 216.223841][ T6655] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 216.548729][ T6657] FAULT_INJECTION: forcing a failure.
[ 216.548729][ T6657] name failslab, interval 1, probability 0, space 0, times 0
[ 216.561501][ T6657] CPU: 0 UID: 0 PID: 6657 Comm: syz.0.258 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 216.561526][ T6657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 216.561537][ T6657] Call Trace:
[ 216.561545][ T6657]
[ 216.561554][ T6657] dump_stack_lvl+0x241/0x360
[ 216.561585][ T6657] ? __pfx_dump_stack_lvl+0x10/0x10
[ 216.561609][ T6657] ? __pfx__printk+0x10/0x10
[ 216.561637][ T6657] ? __pfx___might_resched+0x10/0x10
[ 216.561664][ T6657] should_fail_ex+0x424/0x570
[ 216.561688][ T6657] should_failslab+0xac/0x100
[ 216.561714][ T6657] kmem_cache_alloc_noprof+0x78/0x390
[ 216.561736][ T6657] ? __kernfs_new_node+0xdf/0x890
[ 216.561760][ T6657] __kernfs_new_node+0xdf/0x890
[ 216.561777][ T6657] ? __lock_acquire+0xad5/0xd80
[ 216.561803][ T6657] ? __pfx___kernfs_new_node+0x10/0x10
[ 216.561830][ T6657] ? kernfs_root+0x1c/0x230
[ 216.561848][ T6657] ? kernfs_root+0x1c/0x230
[ 216.561868][ T6657] kernfs_new_node+0x114/0x220
[ 216.561892][ T6657] kernfs_create_link+0xa5/0x1f0
[ 216.561918][ T6657] sysfs_do_create_link_sd+0x85/0x110
[ 216.561938][ T6657] software_node_notify+0xe1/0x1b0
[ 216.561960][ T6657] device_add+0x513/0xbf0
[ 216.561981][ T6657] ? iommufd_test+0x2efb/0x56a0
[ 216.562002][ T6657] iommufd_test+0x3350/0x56a0
[ 216.562041][ T6657] ? __pfx_iommufd_test+0x10/0x10
[ 216.562071][ T6657] ? __lock_acquire+0xad5/0xd80
[ 216.562120][ T6657] iommufd_fops_ioctl+0x4fc/0x610
[ 216.562147][ T6657] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 216.562175][ T6657] ? __fget_files+0x2a/0x420
[ 216.562196][ T6657] ? __fget_files+0x2a/0x420
[ 216.562216][ T6657] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 216.562241][ T6657] __se_sys_ioctl+0xf1/0x160
[ 216.562264][ T6657] do_syscall_64+0xf3/0x230
[ 216.562285][ T6657] ? clear_bhb_loop+0x45/0xa0
[ 216.562307][ T6657] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 216.562324][ T6657] RIP: 0033:0x7f9b9698d169
[ 216.562339][ T6657] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 216.562353][ T6657] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 216.562371][ T6657] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 216.562384][ T6657] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 216.562395][ T6657] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 216.562406][ T6657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 216.562417][ T6657] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 216.562444][ T6657]
[ 216.563237][ T6657] iommufd_mock iommufd_mock0: Adding to iommu group 0
2025/04/10 19:10:11 executed programs: 245
[ 216.913439][ T6659] FAULT_INJECTION: forcing a failure.
[ 216.913439][ T6659] name failslab, interval 1, probability 0, space 0, times 0
[ 216.926274][ T6659] CPU: 0 UID: 0 PID: 6659 Comm: syz.0.259 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 216.926299][ T6659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 216.926310][ T6659] Call Trace:
[ 216.926318][ T6659]
[ 216.926326][ T6659] dump_stack_lvl+0x241/0x360
[ 216.926359][ T6659] ? __pfx_dump_stack_lvl+0x10/0x10
[ 216.926383][ T6659] ? __pfx__printk+0x10/0x10
[ 216.926412][ T6659] ? __pfx___might_resched+0x10/0x10
[ 216.926439][ T6659] should_fail_ex+0x424/0x570
[ 216.926460][ T6659] should_failslab+0xac/0x100
[ 216.926486][ T6659] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 216.926512][ T6659] ? __kernfs_new_node+0xa2/0x890
[ 216.926529][ T6659] ? kernel_text_address+0xa7/0xe0
[ 216.926549][ T6659] kstrdup+0x42/0x100
[ 216.926571][ T6659] __kernfs_new_node+0xa2/0x890
[ 216.926592][ T6659] ? __lock_acquire+0xad5/0xd80
[ 216.926615][ T6659] ? __pfx___kernfs_new_node+0x10/0x10
[ 216.926643][ T6659] ? kernfs_root+0x1c/0x230
[ 216.926662][ T6659] ? kernfs_root+0x1c/0x230
[ 216.926683][ T6659] kernfs_new_node+0x114/0x220
[ 216.926705][ T6659] kernfs_create_dir_ns+0x43/0x120
[ 216.926729][ T6659] sysfs_create_dir_ns+0x1a2/0x3f0
[ 216.926751][ T6659] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 216.926777][ T6659] kobject_add_internal+0x435/0x8d0
[ 216.926809][ T6659] kobject_add+0x15b/0x230
[ 216.926832][ T6659] ? kobject_put+0x43d/0x480
[ 216.926854][ T6659] ? __pfx_kobject_add+0x10/0x10
[ 216.926877][ T6659] ? bus_get_dev_root+0x127/0x160
[ 216.926899][ T6659] ? get_device_parent+0x405/0x410
[ 216.926916][ T6659] ? device_add+0x318/0xbf0
[ 216.926937][ T6659] device_add+0x4e5/0xbf0
[ 216.926958][ T6659] ? iommufd_test+0x2efb/0x56a0
[ 216.926980][ T6659] iommufd_test+0x3350/0x56a0
[ 216.927010][ T6659] ? __pfx_iommufd_test+0x10/0x10
[ 216.927040][ T6659] ? __lock_acquire+0xad5/0xd80
[ 216.927088][ T6659] iommufd_fops_ioctl+0x4fc/0x610
[ 216.927115][ T6659] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 216.927143][ T6659] ? __fget_files+0x2a/0x420
[ 216.927172][ T6659] ? __fget_files+0x2a/0x420
[ 216.927192][ T6659] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 216.927217][ T6659] __se_sys_ioctl+0xf1/0x160
[ 216.927239][ T6659] do_syscall_64+0xf3/0x230
[ 216.927260][ T6659] ? clear_bhb_loop+0x45/0xa0
[ 216.927281][ T6659] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 216.927297][ T6659] RIP: 0033:0x7f9b9698d169
[ 216.927313][ T6659] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 216.927328][ T6659] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 216.927347][ T6659] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 216.927359][ T6659] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 216.927371][ T6659] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 216.927382][ T6659] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 216.927392][ T6659] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 216.927420][ T6659]
[ 216.927431][ T6659] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 217.294624][ T6661] FAULT_INJECTION: forcing a failure.
[ 217.294624][ T6661] name failslab, interval 1, probability 0, space 0, times 0
[ 217.316549][ T6661] CPU: 1 UID: 0 PID: 6661 Comm: syz.0.260 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 217.316578][ T6661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 217.316589][ T6661] Call Trace:
[ 217.316597][ T6661]
[ 217.316605][ T6661] dump_stack_lvl+0x241/0x360
[ 217.316636][ T6661] ? __pfx_dump_stack_lvl+0x10/0x10
[ 217.316661][ T6661] ? __pfx__printk+0x10/0x10
[ 217.316689][ T6661] ? __pfx___might_resched+0x10/0x10
[ 217.316715][ T6661] should_fail_ex+0x424/0x570
[ 217.316739][ T6661] should_failslab+0xac/0x100
[ 217.316765][ T6661] kmem_cache_alloc_noprof+0x78/0x390
[ 217.316794][ T6661] ? __kernfs_new_node+0xdf/0x890
[ 217.316817][ T6661] __kernfs_new_node+0xdf/0x890
[ 217.316835][ T6661] ? __lock_acquire+0xad5/0xd80
[ 217.316860][ T6661] ? __pfx___kernfs_new_node+0x10/0x10
[ 217.316887][ T6661] ? kernfs_root+0x1c/0x230
[ 217.316905][ T6661] ? kernfs_root+0x1c/0x230
[ 217.316925][ T6661] kernfs_new_node+0x114/0x220
[ 217.316949][ T6661] kernfs_create_link+0xa5/0x1f0
[ 217.316983][ T6661] sysfs_do_create_link_sd+0x85/0x110
[ 217.317003][ T6661] software_node_notify+0xe1/0x1b0
[ 217.317025][ T6661] device_add+0x513/0xbf0
[ 217.317046][ T6661] ? iommufd_test+0x2efb/0x56a0
[ 217.317067][ T6661] iommufd_test+0x3350/0x56a0
[ 217.317097][ T6661] ? __pfx_iommufd_test+0x10/0x10
[ 217.317127][ T6661] ? __lock_acquire+0xad5/0xd80
[ 217.317177][ T6661] iommufd_fops_ioctl+0x4fc/0x610
[ 217.317203][ T6661] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 217.317230][ T6661] ? __fget_files+0x2a/0x420
[ 217.317251][ T6661] ? __fget_files+0x2a/0x420
[ 217.317271][ T6661] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 217.317295][ T6661] __se_sys_ioctl+0xf1/0x160
[ 217.317317][ T6661] do_syscall_64+0xf3/0x230
[ 217.317339][ T6661] ? clear_bhb_loop+0x45/0xa0
[ 217.317359][ T6661] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 217.317376][ T6661] RIP: 0033:0x7f9b9698d169
[ 217.317392][ T6661] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 217.317405][ T6661] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 217.317424][ T6661] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 217.317437][ T6661] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 217.317447][ T6661] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 217.317458][ T6661] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 217.317469][ T6661] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 217.317496][ T6661]
[ 217.583886][ T6661] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 217.626755][ T6663] FAULT_INJECTION: forcing a failure.
[ 217.626755][ T6663] name failslab, interval 1, probability 0, space 0, times 0
[ 217.642548][ T6663] CPU: 0 UID: 0 PID: 6663 Comm: syz.0.261 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 217.642574][ T6663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 217.642585][ T6663] Call Trace:
[ 217.642592][ T6663]
[ 217.642600][ T6663] dump_stack_lvl+0x241/0x360
[ 217.642634][ T6663] ? __pfx_dump_stack_lvl+0x10/0x10
[ 217.642658][ T6663] ? __pfx__printk+0x10/0x10
[ 217.642686][ T6663] ? __pfx___might_resched+0x10/0x10
[ 217.642711][ T6663] should_fail_ex+0x424/0x570
[ 217.642734][ T6663] should_failslab+0xac/0x100
[ 217.642759][ T6663] kmem_cache_alloc_noprof+0x78/0x390
[ 217.642782][ T6663] ? __kernfs_new_node+0xdf/0x890
[ 217.642806][ T6663] __kernfs_new_node+0xdf/0x890
[ 217.642823][ T6663] ? __lock_acquire+0xad5/0xd80
[ 217.642849][ T6663] ? __pfx___kernfs_new_node+0x10/0x10
[ 217.642889][ T6663] ? kernfs_root+0x1c/0x230
[ 217.642908][ T6663] ? kernfs_root+0x1c/0x230
[ 217.642928][ T6663] kernfs_new_node+0x114/0x220
[ 217.642951][ T6663] kernfs_create_link+0xa5/0x1f0
[ 217.642978][ T6663] sysfs_do_create_link_sd+0x85/0x110
[ 217.642998][ T6663] software_node_notify+0xe1/0x1b0
[ 217.643019][ T6663] device_add+0x513/0xbf0
[ 217.643041][ T6663] ? iommufd_test+0x2efb/0x56a0
[ 217.643064][ T6663] iommufd_test+0x3350/0x56a0
[ 217.643093][ T6663] ? __pfx_iommufd_test+0x10/0x10
[ 217.643122][ T6663] ? __lock_acquire+0xad5/0xd80
[ 217.643171][ T6663] iommufd_fops_ioctl+0x4fc/0x610
[ 217.643198][ T6663] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 217.643226][ T6663] ? __fget_files+0x2a/0x420
[ 217.643247][ T6663] ? __fget_files+0x2a/0x420
[ 217.643268][ T6663] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 217.643293][ T6663] __se_sys_ioctl+0xf1/0x160
[ 217.643315][ T6663] do_syscall_64+0xf3/0x230
[ 217.643338][ T6663] ? clear_bhb_loop+0x45/0xa0
[ 217.643359][ T6663] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 217.643375][ T6663] RIP: 0033:0x7f9b9698d169
[ 217.643392][ T6663] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 217.643405][ T6663] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 217.643425][ T6663] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 217.643437][ T6663] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 217.643449][ T6663] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 217.643460][ T6663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 217.643470][ T6663] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 217.643497][ T6663]
[ 217.644241][ T6663] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 218.015465][ T6665] FAULT_INJECTION: forcing a failure.
[ 218.015465][ T6665] name failslab, interval 1, probability 0, space 0, times 0
[ 218.033221][ T6665] CPU: 0 UID: 0 PID: 6665 Comm: syz.0.262 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 218.033247][ T6665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 218.033258][ T6665] Call Trace:
[ 218.033266][ T6665]
[ 218.033274][ T6665] dump_stack_lvl+0x241/0x360
[ 218.033307][ T6665] ? __pfx_dump_stack_lvl+0x10/0x10
[ 218.033332][ T6665] ? __pfx__printk+0x10/0x10
[ 218.033359][ T6665] ? __pfx___might_resched+0x10/0x10
[ 218.033386][ T6665] should_fail_ex+0x424/0x570
[ 218.033409][ T6665] should_failslab+0xac/0x100
[ 218.033435][ T6665] kmem_cache_alloc_noprof+0x78/0x390
[ 218.033458][ T6665] ? __kernfs_new_node+0xdf/0x890
[ 218.033482][ T6665] __kernfs_new_node+0xdf/0x890
[ 218.033502][ T6665] ? __lock_acquire+0xad5/0xd80
[ 218.033525][ T6665] ? __pfx___kernfs_new_node+0x10/0x10
[ 218.033554][ T6665] ? kernfs_root+0x1c/0x230
[ 218.033573][ T6665] ? kernfs_root+0x1c/0x230
[ 218.033593][ T6665] kernfs_new_node+0x114/0x220
[ 218.033616][ T6665] kernfs_create_dir_ns+0x43/0x120
[ 218.033638][ T6665] sysfs_create_dir_ns+0x1a2/0x3f0
[ 218.033660][ T6665] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 218.033686][ T6665] kobject_add_internal+0x435/0x8d0
[ 218.033719][ T6665] kobject_add+0x15b/0x230
[ 218.033743][ T6665] ? kobject_put+0x43d/0x480
[ 218.033764][ T6665] ? __pfx_kobject_add+0x10/0x10
[ 218.033788][ T6665] ? bus_get_dev_root+0x127/0x160
[ 218.033809][ T6665] ? get_device_parent+0x405/0x410
[ 218.033827][ T6665] ? device_add+0x318/0xbf0
[ 218.033849][ T6665] device_add+0x4e5/0xbf0
[ 218.033870][ T6665] ? iommufd_test+0x2efb/0x56a0
[ 218.033891][ T6665] iommufd_test+0x3350/0x56a0
[ 218.033920][ T6665] ? __pfx_iommufd_test+0x10/0x10
[ 218.033950][ T6665] ? __lock_acquire+0xad5/0xd80
[ 218.033999][ T6665] iommufd_fops_ioctl+0x4fc/0x610
[ 218.034026][ T6665] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 218.034054][ T6665] ? __fget_files+0x2a/0x420
[ 218.034076][ T6665] ? __fget_files+0x2a/0x420
[ 218.034096][ T6665] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 218.034119][ T6665] __se_sys_ioctl+0xf1/0x160
[ 218.034147][ T6665] do_syscall_64+0xf3/0x230
[ 218.034168][ T6665] ? clear_bhb_loop+0x45/0xa0
[ 218.034188][ T6665] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 218.034205][ T6665] RIP: 0033:0x7f9b9698d169
[ 218.034220][ T6665] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 218.034235][ T6665] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 218.034254][ T6665] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 218.034267][ T6665] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 218.034279][ T6665] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 218.034290][ T6665] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 218.034300][ T6665] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 218.034327][ T6665]
[ 218.034353][ T6665] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 218.389197][ T6667] FAULT_INJECTION: forcing a failure.
[ 218.389197][ T6667] name failslab, interval 1, probability 0, space 0, times 0
[ 218.401998][ T6667] CPU: 0 UID: 0 PID: 6667 Comm: syz.0.263 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 218.402021][ T6667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 218.402033][ T6667] Call Trace:
[ 218.402040][ T6667]
[ 218.402048][ T6667] dump_stack_lvl+0x241/0x360
[ 218.402079][ T6667] ? __pfx_dump_stack_lvl+0x10/0x10
[ 218.402103][ T6667] ? __pfx__printk+0x10/0x10
[ 218.402131][ T6667] ? __pfx___might_resched+0x10/0x10
[ 218.402157][ T6667] should_fail_ex+0x424/0x570
[ 218.402181][ T6667] should_failslab+0xac/0x100
[ 218.402206][ T6667] kmem_cache_alloc_noprof+0x78/0x390
[ 218.402229][ T6667] ? __kernfs_new_node+0xdf/0x890
[ 218.402252][ T6667] __kernfs_new_node+0xdf/0x890
[ 218.402272][ T6667] ? __lock_acquire+0xad5/0xd80
[ 218.402295][ T6667] ? __pfx___kernfs_new_node+0x10/0x10
[ 218.402330][ T6667] ? kernfs_root+0x1c/0x230
[ 218.402349][ T6667] ? kernfs_root+0x1c/0x230
[ 218.402369][ T6667] kernfs_new_node+0x114/0x220
[ 218.402393][ T6667] kernfs_create_dir_ns+0x43/0x120
[ 218.402416][ T6667] sysfs_create_dir_ns+0x1a2/0x3f0
[ 218.402437][ T6667] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 218.402464][ T6667] kobject_add_internal+0x435/0x8d0
[ 218.402496][ T6667] kobject_add+0x15b/0x230
[ 218.402520][ T6667] ? kobject_put+0x43d/0x480
[ 218.402541][ T6667] ? __pfx_kobject_add+0x10/0x10
[ 218.402565][ T6667] ? bus_get_dev_root+0x127/0x160
[ 218.402586][ T6667] ? get_device_parent+0x405/0x410
[ 218.402604][ T6667] ? device_add+0x318/0xbf0
[ 218.402626][ T6667] device_add+0x4e5/0xbf0
[ 218.402647][ T6667] ? iommufd_test+0x2efb/0x56a0
[ 218.402668][ T6667] iommufd_test+0x3350/0x56a0
[ 218.402698][ T6667] ? __pfx_iommufd_test+0x10/0x10
[ 218.402728][ T6667] ? __lock_acquire+0xad5/0xd80
[ 218.402779][ T6667] iommufd_fops_ioctl+0x4fc/0x610
[ 218.402812][ T6667] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 218.402839][ T6667] ? __fget_files+0x2a/0x420
[ 218.402861][ T6667] ? __fget_files+0x2a/0x420
[ 218.402881][ T6667] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 218.402906][ T6667] __se_sys_ioctl+0xf1/0x160
[ 218.402928][ T6667] do_syscall_64+0xf3/0x230
[ 218.402949][ T6667] ? clear_bhb_loop+0x45/0xa0
[ 218.402970][ T6667] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 218.402987][ T6667] RIP: 0033:0x7f9b9698d169
[ 218.403003][ T6667] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 218.403017][ T6667] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 218.403036][ T6667] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 218.403048][ T6667] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 218.403060][ T6667] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 218.403071][ T6667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 218.403081][ T6667] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 218.403109][ T6667]
[ 218.403135][ T6667] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 218.771691][ T6669] FAULT_INJECTION: forcing a failure.
[ 218.771691][ T6669] name failslab, interval 1, probability 0, space 0, times 0
[ 218.786953][ T6669] CPU: 0 UID: 0 PID: 6669 Comm: syz.0.264 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 218.786979][ T6669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 218.786990][ T6669] Call Trace:
[ 218.786998][ T6669]
[ 218.787006][ T6669] dump_stack_lvl+0x241/0x360
[ 218.787037][ T6669] ? __pfx_dump_stack_lvl+0x10/0x10
[ 218.787062][ T6669] ? __pfx__printk+0x10/0x10
[ 218.787086][ T6669] ? __pfx___might_resched+0x10/0x10
[ 218.787112][ T6669] should_fail_ex+0x424/0x570
[ 218.787135][ T6669] should_failslab+0xac/0x100
[ 218.787160][ T6669] kmem_cache_alloc_noprof+0x78/0x390
[ 218.787183][ T6669] ? __kernfs_new_node+0xdf/0x890
[ 218.787207][ T6669] __kernfs_new_node+0xdf/0x890
[ 218.787224][ T6669] ? __lock_acquire+0xad5/0xd80
[ 218.787248][ T6669] ? __pfx___kernfs_new_node+0x10/0x10
[ 218.787273][ T6669] ? kernfs_root+0x1c/0x230
[ 218.787291][ T6669] ? kernfs_root+0x1c/0x230
[ 218.787312][ T6669] kernfs_new_node+0x114/0x220
[ 218.787335][ T6669] kernfs_create_link+0xa5/0x1f0
[ 218.787362][ T6669] sysfs_do_create_link_sd+0x85/0x110
[ 218.787383][ T6669] software_node_notify+0xe1/0x1b0
[ 218.787402][ T6669] device_add+0x513/0xbf0
[ 218.787422][ T6669] ? iommufd_test+0x2efb/0x56a0
[ 218.787444][ T6669] iommufd_test+0x3350/0x56a0
[ 218.787473][ T6669] ? __pfx_iommufd_test+0x10/0x10
[ 218.787504][ T6669] ? __lock_acquire+0xad5/0xd80
[ 218.787552][ T6669] iommufd_fops_ioctl+0x4fc/0x610
[ 218.787576][ T6669] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 218.787601][ T6669] ? __fget_files+0x2a/0x420
[ 218.787621][ T6669] ? __fget_files+0x2a/0x420
[ 218.787640][ T6669] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 218.787667][ T6669] __se_sys_ioctl+0xf1/0x160
[ 218.787695][ T6669] do_syscall_64+0xf3/0x230
[ 218.787714][ T6669] ? clear_bhb_loop+0x45/0xa0
[ 218.787732][ T6669] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 218.787754][ T6669] RIP: 0033:0x7f9b9698d169
[ 218.787769][ T6669] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 218.787781][ T6669] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 218.787799][ T6669] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 218.787812][ T6669] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 218.787824][ T6669] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 218.787834][ T6669] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 218.787845][ T6669] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 218.787871][ T6669]
[ 219.060231][ T6669] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 219.102872][ T6671] FAULT_INJECTION: forcing a failure.
[ 219.102872][ T6671] name failslab, interval 1, probability 0, space 0, times 0
[ 219.130915][ T6671] CPU: 1 UID: 0 PID: 6671 Comm: syz.0.265 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 219.130943][ T6671] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 219.130954][ T6671] Call Trace:
[ 219.130961][ T6671]
[ 219.130969][ T6671] dump_stack_lvl+0x241/0x360
[ 219.131002][ T6671] ? __pfx_dump_stack_lvl+0x10/0x10
[ 219.131026][ T6671] ? __pfx__printk+0x10/0x10
[ 219.131055][ T6671] ? __pfx___might_resched+0x10/0x10
[ 219.131082][ T6671] should_fail_ex+0x424/0x570
[ 219.131107][ T6671] should_failslab+0xac/0x100
[ 219.131133][ T6671] kmem_cache_alloc_noprof+0x78/0x390
[ 219.131155][ T6671] ? skb_clone+0x20c/0x390
[ 219.131180][ T6671] skb_clone+0x20c/0x390
[ 219.131197][ T6671] ? netlink_broadcast_filtered+0x702/0x12a0
[ 219.131224][ T6671] netlink_broadcast_filtered+0x710/0x12a0
[ 219.131267][ T6671] netlink_broadcast+0x39/0x50
[ 219.131291][ T6671] kobject_uevent_net_broadcast+0x38f/0x580
[ 219.131323][ T6671] kobject_uevent_env+0x57d/0x8e0
[ 219.131357][ T6671] swnode_register+0x4b3/0x540
[ 219.131385][ T6671] fwnode_create_software_node+0x199/0x1f0
[ 219.131407][ T6671] device_create_managed_software_node+0xd5/0x1f0
[ 219.131426][ T6671] ? iommufd_test+0x2efb/0x56a0
[ 219.131447][ T6671] iommufd_test+0x3335/0x56a0
[ 219.131479][ T6671] ? __pfx_iommufd_test+0x10/0x10
[ 219.131509][ T6671] ? __lock_acquire+0xad5/0xd80
[ 219.131561][ T6671] iommufd_fops_ioctl+0x4fc/0x610
[ 219.131588][ T6671] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 219.131616][ T6671] ? __fget_files+0x2a/0x420
[ 219.131638][ T6671] ? __fget_files+0x2a/0x420
[ 219.131658][ T6671] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 219.131683][ T6671] __se_sys_ioctl+0xf1/0x160
[ 219.131714][ T6671] do_syscall_64+0xf3/0x230
[ 219.131735][ T6671] ? clear_bhb_loop+0x45/0xa0
[ 219.131756][ T6671] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 219.131771][ T6671] RIP: 0033:0x7f9b9698d169
[ 219.131787][ T6671] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 219.131801][ T6671] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 219.131821][ T6671] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 219.131833][ T6671] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 219.131845][ T6671] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 219.131856][ T6671] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 219.131866][ T6671] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 219.131895][ T6671]
[ 219.132891][ T6671] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 219.484161][ T6673] FAULT_INJECTION: forcing a failure.
[ 219.484161][ T6673] name failslab, interval 1, probability 0, space 0, times 0
[ 219.500314][ T6673] CPU: 1 UID: 0 PID: 6673 Comm: syz.0.266 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 219.500342][ T6673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 219.500353][ T6673] Call Trace:
[ 219.500361][ T6673]
[ 219.500368][ T6673] dump_stack_lvl+0x241/0x360
[ 219.500404][ T6673] ? __pfx_dump_stack_lvl+0x10/0x10
[ 219.500429][ T6673] ? __pfx__printk+0x10/0x10
[ 219.500457][ T6673] ? __pfx___might_resched+0x10/0x10
[ 219.500484][ T6673] should_fail_ex+0x424/0x570
[ 219.500507][ T6673] should_failslab+0xac/0x100
[ 219.500533][ T6673] kmem_cache_alloc_noprof+0x78/0x390
[ 219.500556][ T6673] ? __kernfs_new_node+0xdf/0x890
[ 219.500579][ T6673] __kernfs_new_node+0xdf/0x890
[ 219.500599][ T6673] ? __lock_acquire+0xad5/0xd80
[ 219.500622][ T6673] ? __pfx___kernfs_new_node+0x10/0x10
[ 219.500652][ T6673] ? kernfs_root+0x1c/0x230
[ 219.500670][ T6673] ? kernfs_root+0x1c/0x230
[ 219.500691][ T6673] kernfs_new_node+0x114/0x220
[ 219.500714][ T6673] kernfs_create_dir_ns+0x43/0x120
[ 219.500737][ T6673] sysfs_create_dir_ns+0x1a2/0x3f0
[ 219.500758][ T6673] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 219.500783][ T6673] kobject_add_internal+0x435/0x8d0
[ 219.500816][ T6673] kobject_add+0x15b/0x230
[ 219.500840][ T6673] ? kobject_put+0x43d/0x480
[ 219.500861][ T6673] ? __pfx_kobject_add+0x10/0x10
[ 219.500884][ T6673] ? bus_get_dev_root+0x127/0x160
[ 219.500905][ T6673] ? get_device_parent+0x405/0x410
[ 219.500924][ T6673] ? device_add+0x318/0xbf0
[ 219.500945][ T6673] device_add+0x4e5/0xbf0
[ 219.500966][ T6673] ? iommufd_test+0x2efb/0x56a0
[ 219.500987][ T6673] iommufd_test+0x3350/0x56a0
[ 219.501017][ T6673] ? __pfx_iommufd_test+0x10/0x10
[ 219.501055][ T6673] ? __lock_acquire+0xad5/0xd80
[ 219.501120][ T6673] iommufd_fops_ioctl+0x4fc/0x610
[ 219.501159][ T6673] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 219.501197][ T6673] ? __fget_files+0x2a/0x420
[ 219.501219][ T6673] ? __fget_files+0x2a/0x420
[ 219.501239][ T6673] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 219.501264][ T6673] __se_sys_ioctl+0xf1/0x160
[ 219.501287][ T6673] do_syscall_64+0xf3/0x230
[ 219.501308][ T6673] ? clear_bhb_loop+0x45/0xa0
[ 219.501329][ T6673] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 219.501345][ T6673] RIP: 0033:0x7f9b9698d169
[ 219.501361][ T6673] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 219.501375][ T6673] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 219.501395][ T6673] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 219.501408][ T6673] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 219.501419][ T6673] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 219.501430][ T6673] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 219.501440][ T6673] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 219.501467][ T6673]
[ 219.501494][ T6673] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 219.839496][ T6675] FAULT_INJECTION: forcing a failure.
[ 219.839496][ T6675] name failslab, interval 1, probability 0, space 0, times 0
[ 219.857136][ T6675] CPU: 0 UID: 0 PID: 6675 Comm: syz.0.267 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 219.857162][ T6675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 219.857172][ T6675] Call Trace:
[ 219.857180][ T6675]
[ 219.857188][ T6675] dump_stack_lvl+0x241/0x360
[ 219.857220][ T6675] ? __pfx_dump_stack_lvl+0x10/0x10
[ 219.857243][ T6675] ? __pfx__printk+0x10/0x10
[ 219.857271][ T6675] ? __pfx___might_resched+0x10/0x10
[ 219.857296][ T6675] should_fail_ex+0x424/0x570
[ 219.857319][ T6675] should_failslab+0xac/0x100
[ 219.857344][ T6675] kmem_cache_alloc_noprof+0x78/0x390
[ 219.857367][ T6675] ? __kernfs_new_node+0xdf/0x890
[ 219.857390][ T6675] __kernfs_new_node+0xdf/0x890
[ 219.857408][ T6675] ? __lock_acquire+0xad5/0xd80
[ 219.857433][ T6675] ? __pfx___kernfs_new_node+0x10/0x10
[ 219.857460][ T6675] ? kernfs_root+0x1c/0x230
[ 219.857479][ T6675] ? kernfs_root+0x1c/0x230
[ 219.857498][ T6675] kernfs_new_node+0x114/0x220
[ 219.857522][ T6675] kernfs_create_link+0xa5/0x1f0
[ 219.857549][ T6675] sysfs_do_create_link_sd+0x85/0x110
[ 219.857569][ T6675] software_node_notify+0xe1/0x1b0
[ 219.857592][ T6675] device_add+0x513/0xbf0
[ 219.857614][ T6675] ? iommufd_test+0x2efb/0x56a0
[ 219.857656][ T6675] iommufd_test+0x3350/0x56a0
[ 219.857682][ T6675] ? __pfx_iommufd_test+0x10/0x10
[ 219.857711][ T6675] ? __lock_acquire+0xad5/0xd80
[ 219.857767][ T6675] iommufd_fops_ioctl+0x4fc/0x610
[ 219.857794][ T6675] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 219.857822][ T6675] ? __fget_files+0x2a/0x420
[ 219.857844][ T6675] ? __fget_files+0x2a/0x420
[ 219.857865][ T6675] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 219.857890][ T6675] __se_sys_ioctl+0xf1/0x160
[ 219.857913][ T6675] do_syscall_64+0xf3/0x230
[ 219.857934][ T6675] ? clear_bhb_loop+0x45/0xa0
[ 219.857955][ T6675] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 219.857972][ T6675] RIP: 0033:0x7f9b9698d169
[ 219.857989][ T6675] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 219.858002][ T6675] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 219.858021][ T6675] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 219.858033][ T6675] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 219.858045][ T6675] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 219.858055][ T6675] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 219.858066][ T6675] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 219.858094][ T6675]
[ 220.172301][ T6675] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 220.204907][ T6677] FAULT_INJECTION: forcing a failure.
[ 220.204907][ T6677] name failslab, interval 1, probability 0, space 0, times 0
[ 220.222090][ T6677] CPU: 1 UID: 0 PID: 6677 Comm: syz.0.268 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 220.222118][ T6677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 220.222129][ T6677] Call Trace:
[ 220.222137][ T6677]
[ 220.222145][ T6677] dump_stack_lvl+0x241/0x360
[ 220.222178][ T6677] ? __pfx_dump_stack_lvl+0x10/0x10
[ 220.222203][ T6677] ? __pfx__printk+0x10/0x10
[ 220.222230][ T6677] ? __pfx___might_resched+0x10/0x10
[ 220.222257][ T6677] should_fail_ex+0x424/0x570
[ 220.222281][ T6677] should_failslab+0xac/0x100
[ 220.222306][ T6677] kmem_cache_alloc_noprof+0x78/0x390
[ 220.222329][ T6677] ? __kernfs_new_node+0xdf/0x890
[ 220.222352][ T6677] __kernfs_new_node+0xdf/0x890
[ 220.222369][ T6677] ? __lock_acquire+0xad5/0xd80
[ 220.222393][ T6677] ? __pfx___kernfs_new_node+0x10/0x10
[ 220.222420][ T6677] ? kernfs_root+0x1c/0x230
[ 220.222439][ T6677] ? kernfs_root+0x1c/0x230
[ 220.222459][ T6677] kernfs_new_node+0x114/0x220
[ 220.222482][ T6677] kernfs_create_link+0xa5/0x1f0
[ 220.222509][ T6677] sysfs_do_create_link_sd+0x85/0x110
[ 220.222529][ T6677] software_node_notify+0xe1/0x1b0
[ 220.222552][ T6677] device_add+0x513/0xbf0
[ 220.222573][ T6677] ? iommufd_test+0x2efb/0x56a0
[ 220.222595][ T6677] iommufd_test+0x3350/0x56a0
[ 220.222624][ T6677] ? __pfx_iommufd_test+0x10/0x10
[ 220.222653][ T6677] ? __lock_acquire+0xad5/0xd80
[ 220.222703][ T6677] iommufd_fops_ioctl+0x4fc/0x610
[ 220.222729][ T6677] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 220.222757][ T6677] ? __fget_files+0x2a/0x420
[ 220.222778][ T6677] ? __fget_files+0x2a/0x420
[ 220.222798][ T6677] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 220.222824][ T6677] __se_sys_ioctl+0xf1/0x160
[ 220.222846][ T6677] do_syscall_64+0xf3/0x230
[ 220.222876][ T6677] ? clear_bhb_loop+0x45/0xa0
[ 220.222896][ T6677] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 220.222913][ T6677] RIP: 0033:0x7f9b9698d169
[ 220.222930][ T6677] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 220.222943][ T6677] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 220.222962][ T6677] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 220.222975][ T6677] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 220.222986][ T6677] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 220.222997][ T6677] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 220.223007][ T6677] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 220.223035][ T6677]
[ 220.223794][ T6677] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 220.569235][ T6679] FAULT_INJECTION: forcing a failure.
[ 220.569235][ T6679] name failslab, interval 1, probability 0, space 0, times 0
[ 220.583889][ T6679] CPU: 0 UID: 0 PID: 6679 Comm: syz.0.269 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 220.583923][ T6679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 220.583934][ T6679] Call Trace:
[ 220.583942][ T6679]
[ 220.583950][ T6679] dump_stack_lvl+0x241/0x360
[ 220.583982][ T6679] ? __pfx_dump_stack_lvl+0x10/0x10
[ 220.584006][ T6679] ? __pfx__printk+0x10/0x10
[ 220.584032][ T6679] ? __pfx___might_resched+0x10/0x10
[ 220.584058][ T6679] should_fail_ex+0x424/0x570
[ 220.584083][ T6679] should_failslab+0xac/0x100
[ 220.584108][ T6679] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 220.584134][ T6679] ? __kernfs_new_node+0xa2/0x890
[ 220.584151][ T6679] ? kernel_text_address+0xa7/0xe0
[ 220.584171][ T6679] kstrdup+0x42/0x100
[ 220.584196][ T6679] __kernfs_new_node+0xa2/0x890
[ 220.584216][ T6679] ? __lock_acquire+0xad5/0xd80
[ 220.584238][ T6679] ? __pfx___kernfs_new_node+0x10/0x10
[ 220.584264][ T6679] ? kernfs_root+0x1c/0x230
[ 220.584280][ T6679] ? kernfs_root+0x1c/0x230
[ 220.584296][ T6679] kernfs_new_node+0x114/0x220
[ 220.584318][ T6679] kernfs_create_dir_ns+0x43/0x120
[ 220.584339][ T6679] sysfs_create_dir_ns+0x1a2/0x3f0
[ 220.584359][ T6679] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 220.584384][ T6679] kobject_add_internal+0x435/0x8d0
[ 220.584413][ T6679] kobject_add+0x15b/0x230
[ 220.584434][ T6679] ? kobject_put+0x43d/0x480
[ 220.584455][ T6679] ? __pfx_kobject_add+0x10/0x10
[ 220.584477][ T6679] ? bus_get_dev_root+0x127/0x160
[ 220.584496][ T6679] ? get_device_parent+0x405/0x410
[ 220.584514][ T6679] ? device_add+0x318/0xbf0
[ 220.584536][ T6679] device_add+0x4e5/0xbf0
[ 220.584555][ T6679] ? iommufd_test+0x2efb/0x56a0
[ 220.584576][ T6679] iommufd_test+0x3350/0x56a0
[ 220.584606][ T6679] ? __pfx_iommufd_test+0x10/0x10
[ 220.584644][ T6679] ? __lock_acquire+0xad5/0xd80
[ 220.584692][ T6679] iommufd_fops_ioctl+0x4fc/0x610
[ 220.584718][ T6679] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 220.584745][ T6679] ? __fget_files+0x2a/0x420
[ 220.584766][ T6679] ? __fget_files+0x2a/0x420
[ 220.584785][ T6679] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 220.584809][ T6679] __se_sys_ioctl+0xf1/0x160
[ 220.584832][ T6679] do_syscall_64+0xf3/0x230
[ 220.584853][ T6679] ? clear_bhb_loop+0x45/0xa0
[ 220.584872][ T6679] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 220.584889][ T6679] RIP: 0033:0x7f9b9698d169
[ 220.584910][ T6679] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 220.584924][ T6679] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 220.584942][ T6679] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 220.584955][ T6679] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 220.584965][ T6679] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 220.584976][ T6679] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 220.584987][ T6679] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 220.585014][ T6679]
[ 220.585073][ T6679] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 220.979147][ T6681] FAULT_INJECTION: forcing a failure.
[ 220.979147][ T6681] name failslab, interval 1, probability 0, space 0, times 0
[ 220.998391][ T6681] CPU: 1 UID: 0 PID: 6681 Comm: syz.0.270 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 220.998418][ T6681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 220.998429][ T6681] Call Trace:
[ 220.998437][ T6681]
[ 220.998445][ T6681] dump_stack_lvl+0x241/0x360
[ 220.998477][ T6681] ? __pfx_dump_stack_lvl+0x10/0x10
[ 220.998502][ T6681] ? __pfx__printk+0x10/0x10
[ 220.998529][ T6681] ? __pfx___might_resched+0x10/0x10
[ 220.998555][ T6681] should_fail_ex+0x424/0x570
[ 220.998579][ T6681] should_failslab+0xac/0x100
[ 220.998605][ T6681] kmem_cache_alloc_noprof+0x78/0x390
[ 220.998635][ T6681] ? __kernfs_new_node+0xdf/0x890
[ 220.998658][ T6681] __kernfs_new_node+0xdf/0x890
[ 220.998676][ T6681] ? __lock_acquire+0xad5/0xd80
[ 220.998702][ T6681] ? __pfx___kernfs_new_node+0x10/0x10
[ 220.998729][ T6681] ? kernfs_root+0x1c/0x230
[ 220.998747][ T6681] ? kernfs_root+0x1c/0x230
[ 220.998767][ T6681] kernfs_new_node+0x114/0x220
[ 220.998791][ T6681] kernfs_create_link+0xa5/0x1f0
[ 220.998818][ T6681] sysfs_do_create_link_sd+0x85/0x110
[ 220.998838][ T6681] software_node_notify+0xe1/0x1b0
[ 220.998860][ T6681] device_add+0x513/0xbf0
[ 220.998881][ T6681] ? iommufd_test+0x2efb/0x56a0
[ 220.998902][ T6681] iommufd_test+0x3350/0x56a0
[ 220.998933][ T6681] ? __pfx_iommufd_test+0x10/0x10
[ 220.998963][ T6681] ? __lock_acquire+0xad5/0xd80
[ 220.999011][ T6681] iommufd_fops_ioctl+0x4fc/0x610
[ 220.999037][ T6681] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 220.999065][ T6681] ? __fget_files+0x2a/0x420
[ 220.999087][ T6681] ? __fget_files+0x2a/0x420
[ 220.999107][ T6681] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 220.999131][ T6681] __se_sys_ioctl+0xf1/0x160
[ 220.999154][ T6681] do_syscall_64+0xf3/0x230
[ 220.999176][ T6681] ? clear_bhb_loop+0x45/0xa0
[ 220.999197][ T6681] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 220.999214][ T6681] RIP: 0033:0x7f9b9698d169
[ 220.999229][ T6681] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 220.999242][ T6681] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 220.999261][ T6681] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 220.999274][ T6681] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 220.999285][ T6681] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 220.999296][ T6681] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 220.999307][ T6681] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 220.999335][ T6681]
[ 221.000064][ T6681] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 221.306923][ T6683] FAULT_INJECTION: forcing a failure.
[ 221.306923][ T6683] name failslab, interval 1, probability 0, space 0, times 0
[ 221.319806][ T6683] CPU: 1 UID: 0 PID: 6683 Comm: syz.0.271 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 221.319830][ T6683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 221.319841][ T6683] Call Trace:
[ 221.319849][ T6683]
[ 221.319857][ T6683] dump_stack_lvl+0x241/0x360
[ 221.319889][ T6683] ? __pfx_dump_stack_lvl+0x10/0x10
[ 221.319913][ T6683] ? __pfx__printk+0x10/0x10
[ 221.319941][ T6683] ? __pfx___might_resched+0x10/0x10
[ 221.319967][ T6683] should_fail_ex+0x424/0x570
[ 221.319990][ T6683] should_failslab+0xac/0x100
[ 221.320016][ T6683] kmem_cache_alloc_noprof+0x78/0x390
[ 221.320039][ T6683] ? __kernfs_new_node+0xdf/0x890
[ 221.320062][ T6683] __kernfs_new_node+0xdf/0x890
[ 221.320082][ T6683] ? __lock_acquire+0xad5/0xd80
[ 221.320105][ T6683] ? __pfx___kernfs_new_node+0x10/0x10
[ 221.320134][ T6683] ? kernfs_root+0x1c/0x230
[ 221.320153][ T6683] ? kernfs_root+0x1c/0x230
[ 221.320172][ T6683] kernfs_new_node+0x114/0x220
[ 221.320196][ T6683] kernfs_create_dir_ns+0x43/0x120
[ 221.320219][ T6683] sysfs_create_dir_ns+0x1a2/0x3f0
[ 221.320240][ T6683] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 221.320267][ T6683] kobject_add_internal+0x435/0x8d0
[ 221.320298][ T6683] kobject_add+0x15b/0x230
[ 221.320323][ T6683] ? kobject_put+0x43d/0x480
[ 221.320344][ T6683] ? __pfx_kobject_add+0x10/0x10
[ 221.320368][ T6683] ? bus_get_dev_root+0x127/0x160
[ 221.320389][ T6683] ? get_device_parent+0x405/0x410
[ 221.320407][ T6683] ? device_add+0x318/0xbf0
[ 221.320429][ T6683] device_add+0x4e5/0xbf0
[ 221.320450][ T6683] ? iommufd_test+0x2efb/0x56a0
[ 221.320471][ T6683] iommufd_test+0x3350/0x56a0
[ 221.320502][ T6683] ? __pfx_iommufd_test+0x10/0x10
[ 221.320532][ T6683] ? __lock_acquire+0xad5/0xd80
[ 221.320589][ T6683] iommufd_fops_ioctl+0x4fc/0x610
[ 221.320615][ T6683] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 221.320643][ T6683] ? __fget_files+0x2a/0x420
[ 221.320665][ T6683] ? __fget_files+0x2a/0x420
[ 221.320685][ T6683] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 221.320710][ T6683] __se_sys_ioctl+0xf1/0x160
[ 221.320733][ T6683] do_syscall_64+0xf3/0x230
[ 221.320754][ T6683] ? clear_bhb_loop+0x45/0xa0
[ 221.320775][ T6683] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 221.320791][ T6683] RIP: 0033:0x7f9b9698d169
[ 221.320807][ T6683] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 221.320821][ T6683] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 221.320840][ T6683] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 221.320853][ T6683] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 221.320864][ T6683] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 221.320876][ T6683] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 221.320886][ T6683] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 221.320914][ T6683]
[ 221.320942][ T6683] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 221.666735][ T6685] FAULT_INJECTION: forcing a failure.
[ 221.666735][ T6685] name failslab, interval 1, probability 0, space 0, times 0
[ 221.679710][ T6685] CPU: 0 UID: 0 PID: 6685 Comm: syz.0.272 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 221.679734][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 221.679746][ T6685] Call Trace:
[ 221.679754][ T6685]
[ 221.679761][ T6685] dump_stack_lvl+0x241/0x360
[ 221.679792][ T6685] ? __pfx_dump_stack_lvl+0x10/0x10
[ 221.679816][ T6685] ? __pfx__printk+0x10/0x10
[ 221.679844][ T6685] ? __pfx___might_resched+0x10/0x10
[ 221.679869][ T6685] should_fail_ex+0x424/0x570
[ 221.679893][ T6685] should_failslab+0xac/0x100
[ 221.679919][ T6685] kmem_cache_alloc_noprof+0x78/0x390
[ 221.679942][ T6685] ? __kernfs_new_node+0xdf/0x890
[ 221.679965][ T6685] __kernfs_new_node+0xdf/0x890
[ 221.679985][ T6685] ? __lock_acquire+0xad5/0xd80
[ 221.680008][ T6685] ? __pfx___kernfs_new_node+0x10/0x10
[ 221.680037][ T6685] ? kernfs_root+0x1c/0x230
[ 221.680057][ T6685] ? kernfs_root+0x1c/0x230
[ 221.680077][ T6685] kernfs_new_node+0x114/0x220
[ 221.680101][ T6685] kernfs_create_dir_ns+0x43/0x120
[ 221.680124][ T6685] sysfs_create_dir_ns+0x1a2/0x3f0
[ 221.680144][ T6685] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 221.680171][ T6685] kobject_add_internal+0x435/0x8d0
[ 221.680203][ T6685] kobject_add+0x15b/0x230
[ 221.680226][ T6685] ? kobject_put+0x43d/0x480
[ 221.680248][ T6685] ? __pfx_kobject_add+0x10/0x10
[ 221.680269][ T6685] ? bus_get_dev_root+0x127/0x160
[ 221.680291][ T6685] ? get_device_parent+0x405/0x410
[ 221.680309][ T6685] ? device_add+0x318/0xbf0
[ 221.680330][ T6685] device_add+0x4e5/0xbf0
[ 221.680351][ T6685] ? iommufd_test+0x2efb/0x56a0
[ 221.680372][ T6685] iommufd_test+0x3350/0x56a0
[ 221.680402][ T6685] ? __pfx_iommufd_test+0x10/0x10
[ 221.680431][ T6685] ? __lock_acquire+0xad5/0xd80
[ 221.680481][ T6685] iommufd_fops_ioctl+0x4fc/0x610
[ 221.680507][ T6685] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 221.680542][ T6685] ? __fget_files+0x2a/0x420
[ 221.680564][ T6685] ? __fget_files+0x2a/0x420
[ 221.680584][ T6685] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 221.680608][ T6685] __se_sys_ioctl+0xf1/0x160
[ 221.680631][ T6685] do_syscall_64+0xf3/0x230
[ 221.680652][ T6685] ? clear_bhb_loop+0x45/0xa0
[ 221.680673][ T6685] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 221.680689][ T6685] RIP: 0033:0x7f9b9698d169
[ 221.680706][ T6685] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 221.680720][ T6685] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 221.680738][ T6685] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 221.680751][ T6685] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 221.680763][ T6685] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 221.680773][ T6685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 221.680783][ T6685] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 221.680808][ T6685]
[ 221.680834][ T6685] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
2025/04/10 19:10:16 executed programs: 259
[ 222.066610][ T6687] FAULT_INJECTION: forcing a failure.
[ 222.066610][ T6687] name failslab, interval 1, probability 0, space 0, times 0
[ 222.081863][ T6687] CPU: 0 UID: 0 PID: 6687 Comm: syz.0.273 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 222.081889][ T6687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 222.081901][ T6687] Call Trace:
[ 222.081908][ T6687]
[ 222.081916][ T6687] dump_stack_lvl+0x241/0x360
[ 222.081948][ T6687] ? __pfx_dump_stack_lvl+0x10/0x10
[ 222.081972][ T6687] ? __pfx__printk+0x10/0x10
[ 222.082000][ T6687] ? __pfx___might_resched+0x10/0x10
[ 222.082026][ T6687] should_fail_ex+0x424/0x570
[ 222.082050][ T6687] should_failslab+0xac/0x100
[ 222.082076][ T6687] kmem_cache_alloc_noprof+0x78/0x390
[ 222.082099][ T6687] ? __kernfs_new_node+0xdf/0x890
[ 222.082122][ T6687] __kernfs_new_node+0xdf/0x890
[ 222.082140][ T6687] ? __lock_acquire+0xad5/0xd80
[ 222.082165][ T6687] ? __pfx___kernfs_new_node+0x10/0x10
[ 222.082191][ T6687] ? kernfs_root+0x1c/0x230
[ 222.082210][ T6687] ? kernfs_root+0x1c/0x230
[ 222.082230][ T6687] kernfs_new_node+0x114/0x220
[ 222.082254][ T6687] kernfs_create_link+0xa5/0x1f0
[ 222.082281][ T6687] sysfs_do_create_link_sd+0x85/0x110
[ 222.082300][ T6687] software_node_notify+0xe1/0x1b0
[ 222.082321][ T6687] device_add+0x513/0xbf0
[ 222.082343][ T6687] ? iommufd_test+0x2efb/0x56a0
[ 222.082364][ T6687] iommufd_test+0x3350/0x56a0
[ 222.082394][ T6687] ? __pfx_iommufd_test+0x10/0x10
[ 222.082424][ T6687] ? __lock_acquire+0xad5/0xd80
[ 222.082473][ T6687] iommufd_fops_ioctl+0x4fc/0x610
[ 222.082507][ T6687] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 222.082534][ T6687] ? __fget_files+0x2a/0x420
[ 222.082556][ T6687] ? __fget_files+0x2a/0x420
[ 222.082575][ T6687] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 222.082600][ T6687] __se_sys_ioctl+0xf1/0x160
[ 222.082623][ T6687] do_syscall_64+0xf3/0x230
[ 222.082644][ T6687] ? clear_bhb_loop+0x45/0xa0
[ 222.082665][ T6687] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 222.082681][ T6687] RIP: 0033:0x7f9b9698d169
[ 222.082697][ T6687] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 222.082711][ T6687] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 222.082730][ T6687] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 222.082742][ T6687] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 222.082754][ T6687] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 222.082764][ T6687] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 222.082775][ T6687] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 222.082801][ T6687]
[ 222.083554][ T6687] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 222.384968][ T6689] FAULT_INJECTION: forcing a failure.
[ 222.384968][ T6689] name failslab, interval 1, probability 0, space 0, times 0
[ 222.401507][ T6689] CPU: 1 UID: 0 PID: 6689 Comm: syz.0.274 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 222.401535][ T6689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 222.401546][ T6689] Call Trace:
[ 222.401554][ T6689]
[ 222.401562][ T6689] dump_stack_lvl+0x241/0x360
[ 222.401594][ T6689] ? __pfx_dump_stack_lvl+0x10/0x10
[ 222.401619][ T6689] ? __pfx__printk+0x10/0x10
[ 222.401647][ T6689] ? __pfx___might_resched+0x10/0x10
[ 222.401673][ T6689] should_fail_ex+0x424/0x570
[ 222.401704][ T6689] should_failslab+0xac/0x100
[ 222.401730][ T6689] kmem_cache_alloc_noprof+0x78/0x390
[ 222.401753][ T6689] ? __kernfs_new_node+0xdf/0x890
[ 222.401776][ T6689] __kernfs_new_node+0xdf/0x890
[ 222.401794][ T6689] ? __lock_acquire+0xad5/0xd80
[ 222.401819][ T6689] ? __pfx___kernfs_new_node+0x10/0x10
[ 222.401847][ T6689] ? kernfs_root+0x1c/0x230
[ 222.401865][ T6689] ? kernfs_root+0x1c/0x230
[ 222.401885][ T6689] kernfs_new_node+0x114/0x220
[ 222.401909][ T6689] kernfs_create_link+0xa5/0x1f0
[ 222.401935][ T6689] sysfs_do_create_link_sd+0x85/0x110
[ 222.401955][ T6689] software_node_notify+0xe1/0x1b0
[ 222.401977][ T6689] device_add+0x513/0xbf0
[ 222.401998][ T6689] ? iommufd_test+0x2efb/0x56a0
[ 222.402019][ T6689] iommufd_test+0x3350/0x56a0
[ 222.402049][ T6689] ? __pfx_iommufd_test+0x10/0x10
[ 222.402078][ T6689] ? __lock_acquire+0xad5/0xd80
[ 222.402128][ T6689] iommufd_fops_ioctl+0x4fc/0x610
[ 222.402155][ T6689] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 222.402182][ T6689] ? __fget_files+0x2a/0x420
[ 222.402204][ T6689] ? __fget_files+0x2a/0x420
[ 222.402225][ T6689] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 222.402249][ T6689] __se_sys_ioctl+0xf1/0x160
[ 222.402272][ T6689] do_syscall_64+0xf3/0x230
[ 222.402294][ T6689] ? clear_bhb_loop+0x45/0xa0
[ 222.402316][ T6689] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 222.402332][ T6689] RIP: 0033:0x7f9b9698d169
[ 222.402348][ T6689] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 222.402362][ T6689] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 222.402381][ T6689] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 222.402394][ T6689] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 222.402405][ T6689] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 222.402416][ T6689] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 222.402426][ T6689] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 222.402452][ T6689]
[ 222.403218][ T6689] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 222.770746][ T6691] FAULT_INJECTION: forcing a failure.
[ 222.770746][ T6691] name failslab, interval 1, probability 0, space 0, times 0
[ 222.783832][ T6691] CPU: 1 UID: 0 PID: 6691 Comm: syz.0.275 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 222.783862][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 222.783874][ T6691] Call Trace:
[ 222.783882][ T6691]
[ 222.783890][ T6691] dump_stack_lvl+0x241/0x360
[ 222.783922][ T6691] ? __pfx_dump_stack_lvl+0x10/0x10
[ 222.783946][ T6691] ? __pfx__printk+0x10/0x10
[ 222.783974][ T6691] ? __pfx___might_resched+0x10/0x10
[ 222.784000][ T6691] should_fail_ex+0x424/0x570
[ 222.784023][ T6691] should_failslab+0xac/0x100
[ 222.784049][ T6691] kmem_cache_alloc_noprof+0x78/0x390
[ 222.784071][ T6691] ? __kernfs_new_node+0xdf/0x890
[ 222.784095][ T6691] __kernfs_new_node+0xdf/0x890
[ 222.784115][ T6691] ? __lock_acquire+0xad5/0xd80
[ 222.784137][ T6691] ? __pfx___kernfs_new_node+0x10/0x10
[ 222.784166][ T6691] ? kernfs_root+0x1c/0x230
[ 222.784185][ T6691] ? kernfs_root+0x1c/0x230
[ 222.784204][ T6691] kernfs_new_node+0x114/0x220
[ 222.784233][ T6691] kernfs_create_dir_ns+0x43/0x120
[ 222.784256][ T6691] sysfs_create_dir_ns+0x1a2/0x3f0
[ 222.784277][ T6691] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 222.784303][ T6691] kobject_add_internal+0x435/0x8d0
[ 222.784334][ T6691] kobject_add+0x15b/0x230
[ 222.784358][ T6691] ? kobject_put+0x43d/0x480
[ 222.784380][ T6691] ? __pfx_kobject_add+0x10/0x10
[ 222.784402][ T6691] ? bus_get_dev_root+0x127/0x160
[ 222.784423][ T6691] ? get_device_parent+0x405/0x410
[ 222.784442][ T6691] ? device_add+0x318/0xbf0
[ 222.784463][ T6691] device_add+0x4e5/0xbf0
[ 222.784484][ T6691] ? iommufd_test+0x2efb/0x56a0
[ 222.784506][ T6691] iommufd_test+0x3350/0x56a0
[ 222.784536][ T6691] ? __pfx_iommufd_test+0x10/0x10
[ 222.784562][ T6691] ? __lock_acquire+0xad5/0xd80
[ 222.784609][ T6691] iommufd_fops_ioctl+0x4fc/0x610
[ 222.784636][ T6691] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 222.784669][ T6691] ? __fget_files+0x2a/0x420
[ 222.784691][ T6691] ? __fget_files+0x2a/0x420
[ 222.784710][ T6691] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 222.784735][ T6691] __se_sys_ioctl+0xf1/0x160
[ 222.784757][ T6691] do_syscall_64+0xf3/0x230
[ 222.784778][ T6691] ? clear_bhb_loop+0x45/0xa0
[ 222.784798][ T6691] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 222.784815][ T6691] RIP: 0033:0x7f9b9698d169
[ 222.784831][ T6691] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 222.784845][ T6691] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 222.784864][ T6691] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 222.784883][ T6691] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 222.784895][ T6691] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 222.784906][ T6691] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 222.784916][ T6691] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 222.784943][ T6691]
[ 222.784971][ T6691] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 223.125918][ T6693] FAULT_INJECTION: forcing a failure.
[ 223.125918][ T6693] name failslab, interval 1, probability 0, space 0, times 0
[ 223.143779][ T6693] CPU: 0 UID: 0 PID: 6693 Comm: syz.0.276 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 223.143807][ T6693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 223.143818][ T6693] Call Trace:
[ 223.143826][ T6693]
[ 223.143834][ T6693] dump_stack_lvl+0x241/0x360
[ 223.143866][ T6693] ? __pfx_dump_stack_lvl+0x10/0x10
[ 223.143890][ T6693] ? __pfx__printk+0x10/0x10
[ 223.143916][ T6693] ? __pfx___might_resched+0x10/0x10
[ 223.143942][ T6693] should_fail_ex+0x424/0x570
[ 223.143966][ T6693] should_failslab+0xac/0x100
[ 223.143992][ T6693] kmem_cache_alloc_noprof+0x78/0x390
[ 223.144015][ T6693] ? __kernfs_new_node+0xdf/0x890
[ 223.144038][ T6693] __kernfs_new_node+0xdf/0x890
[ 223.144055][ T6693] ? __lock_acquire+0xad5/0xd80
[ 223.144080][ T6693] ? __pfx___kernfs_new_node+0x10/0x10
[ 223.144107][ T6693] ? kernfs_root+0x1c/0x230
[ 223.144126][ T6693] ? kernfs_root+0x1c/0x230
[ 223.144146][ T6693] kernfs_new_node+0x114/0x220
[ 223.144169][ T6693] kernfs_create_link+0xa5/0x1f0
[ 223.144196][ T6693] sysfs_do_create_link_sd+0x85/0x110
[ 223.144216][ T6693] software_node_notify+0xe1/0x1b0
[ 223.144238][ T6693] device_add+0x513/0xbf0
[ 223.144260][ T6693] ? iommufd_test+0x2efb/0x56a0
[ 223.144281][ T6693] iommufd_test+0x3350/0x56a0
[ 223.144310][ T6693] ? __pfx_iommufd_test+0x10/0x10
[ 223.144340][ T6693] ? __lock_acquire+0xad5/0xd80
[ 223.144390][ T6693] iommufd_fops_ioctl+0x4fc/0x610
[ 223.144417][ T6693] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 223.144443][ T6693] ? __fget_files+0x2a/0x420
[ 223.144465][ T6693] ? __fget_files+0x2a/0x420
[ 223.144486][ T6693] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 223.144510][ T6693] __se_sys_ioctl+0xf1/0x160
[ 223.144533][ T6693] do_syscall_64+0xf3/0x230
[ 223.144563][ T6693] ? clear_bhb_loop+0x45/0xa0
[ 223.144584][ T6693] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 223.144600][ T6693] RIP: 0033:0x7f9b9698d169
[ 223.144615][ T6693] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 223.144629][ T6693] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 223.144648][ T6693] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 223.144661][ T6693] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 223.144673][ T6693] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 223.144684][ T6693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 223.144694][ T6693] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 223.144721][ T6693]
[ 223.145452][ T6693] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 223.506251][ T6695] FAULT_INJECTION: forcing a failure.
[ 223.506251][ T6695] name failslab, interval 1, probability 0, space 0, times 0
[ 223.525728][ T6695] CPU: 0 UID: 0 PID: 6695 Comm: syz.0.277 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 223.525755][ T6695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 223.525766][ T6695] Call Trace:
[ 223.525774][ T6695]
[ 223.525782][ T6695] dump_stack_lvl+0x241/0x360
[ 223.525814][ T6695] ? __pfx_dump_stack_lvl+0x10/0x10
[ 223.525839][ T6695] ? __pfx__printk+0x10/0x10
[ 223.525867][ T6695] ? __pfx___might_resched+0x10/0x10
[ 223.525893][ T6695] should_fail_ex+0x424/0x570
[ 223.525917][ T6695] should_failslab+0xac/0x100
[ 223.525944][ T6695] kmem_cache_alloc_noprof+0x78/0x390
[ 223.525967][ T6695] ? __kernfs_new_node+0xdf/0x890
[ 223.525989][ T6695] __kernfs_new_node+0xdf/0x890
[ 223.526010][ T6695] ? __lock_acquire+0xad5/0xd80
[ 223.526033][ T6695] ? __pfx___kernfs_new_node+0x10/0x10
[ 223.526062][ T6695] ? kernfs_root+0x1c/0x230
[ 223.526080][ T6695] ? kernfs_root+0x1c/0x230
[ 223.526100][ T6695] kernfs_new_node+0x114/0x220
[ 223.526123][ T6695] kernfs_create_dir_ns+0x43/0x120
[ 223.526147][ T6695] sysfs_create_dir_ns+0x1a2/0x3f0
[ 223.526168][ T6695] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 223.526194][ T6695] kobject_add_internal+0x435/0x8d0
[ 223.526227][ T6695] kobject_add+0x15b/0x230
[ 223.526251][ T6695] ? kobject_put+0x43d/0x480
[ 223.526272][ T6695] ? __pfx_kobject_add+0x10/0x10
[ 223.526296][ T6695] ? bus_get_dev_root+0x127/0x160
[ 223.526317][ T6695] ? get_device_parent+0x405/0x410
[ 223.526336][ T6695] ? device_add+0x318/0xbf0
[ 223.526357][ T6695] device_add+0x4e5/0xbf0
[ 223.526378][ T6695] ? iommufd_test+0x2efb/0x56a0
[ 223.526399][ T6695] iommufd_test+0x3350/0x56a0
[ 223.526429][ T6695] ? __pfx_iommufd_test+0x10/0x10
[ 223.526459][ T6695] ? __lock_acquire+0xad5/0xd80
[ 223.526508][ T6695] iommufd_fops_ioctl+0x4fc/0x610
[ 223.526535][ T6695] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 223.526563][ T6695] ? __fget_files+0x2a/0x420
[ 223.526584][ T6695] ? __fget_files+0x2a/0x420
[ 223.526613][ T6695] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 223.526638][ T6695] __se_sys_ioctl+0xf1/0x160
[ 223.526660][ T6695] do_syscall_64+0xf3/0x230
[ 223.526682][ T6695] ? clear_bhb_loop+0x45/0xa0
[ 223.526703][ T6695] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 223.526718][ T6695] RIP: 0033:0x7f9b9698d169
[ 223.526735][ T6695] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 223.526750][ T6695] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 223.526769][ T6695] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 223.526783][ T6695] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 223.526794][ T6695] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 223.526805][ T6695] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 223.526815][ T6695] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 223.526842][ T6695]
[ 223.526869][ T6695] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 223.885273][ T6697] FAULT_INJECTION: forcing a failure.
[ 223.885273][ T6697] name failslab, interval 1, probability 0, space 0, times 0
[ 223.898210][ T6697] CPU: 0 UID: 0 PID: 6697 Comm: syz.0.278 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 223.898235][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 223.898246][ T6697] Call Trace:
[ 223.898273][ T6697]
[ 223.898286][ T6697] dump_stack_lvl+0x241/0x360
[ 223.898335][ T6697] ? __pfx_dump_stack_lvl+0x10/0x10
[ 223.898359][ T6697] ? __pfx__printk+0x10/0x10
[ 223.898387][ T6697] ? __pfx___might_resched+0x10/0x10
[ 223.898413][ T6697] should_fail_ex+0x424/0x570
[ 223.898436][ T6697] should_failslab+0xac/0x100
[ 223.898462][ T6697] kmem_cache_alloc_noprof+0x78/0x390
[ 223.898485][ T6697] ? __kernfs_new_node+0xdf/0x890
[ 223.898509][ T6697] __kernfs_new_node+0xdf/0x890
[ 223.898529][ T6697] ? __lock_acquire+0xad5/0xd80
[ 223.898558][ T6697] ? __pfx___kernfs_new_node+0x10/0x10
[ 223.898587][ T6697] ? kernfs_root+0x1c/0x230
[ 223.898606][ T6697] ? kernfs_root+0x1c/0x230
[ 223.898626][ T6697] kernfs_new_node+0x114/0x220
[ 223.898650][ T6697] kernfs_create_dir_ns+0x43/0x120
[ 223.898672][ T6697] sysfs_create_dir_ns+0x1a2/0x3f0
[ 223.898693][ T6697] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 223.898720][ T6697] kobject_add_internal+0x435/0x8d0
[ 223.898750][ T6697] kobject_add+0x15b/0x230
[ 223.898775][ T6697] ? kobject_put+0x43d/0x480
[ 223.898796][ T6697] ? __pfx_kobject_add+0x10/0x10
[ 223.898819][ T6697] ? bus_get_dev_root+0x127/0x160
[ 223.898841][ T6697] ? get_device_parent+0x405/0x410
[ 223.898859][ T6697] ? device_add+0x318/0xbf0
[ 223.898880][ T6697] device_add+0x4e5/0xbf0
[ 223.898900][ T6697] ? iommufd_test+0x2efb/0x56a0
[ 223.898920][ T6697] iommufd_test+0x3350/0x56a0
[ 223.898950][ T6697] ? __pfx_iommufd_test+0x10/0x10
[ 223.898980][ T6697] ? __lock_acquire+0xad5/0xd80
[ 223.899029][ T6697] iommufd_fops_ioctl+0x4fc/0x610
[ 223.899055][ T6697] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 223.899082][ T6697] ? __fget_files+0x2a/0x420
[ 223.899104][ T6697] ? __fget_files+0x2a/0x420
[ 223.899124][ T6697] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 223.899149][ T6697] __se_sys_ioctl+0xf1/0x160
[ 223.899171][ T6697] do_syscall_64+0xf3/0x230
[ 223.899192][ T6697] ? clear_bhb_loop+0x45/0xa0
[ 223.899213][ T6697] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 223.899230][ T6697] RIP: 0033:0x7f9b9698d169
[ 223.899246][ T6697] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 223.899260][ T6697] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 223.899280][ T6697] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 223.899291][ T6697] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 223.899303][ T6697] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 223.899314][ T6697] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 223.899325][ T6697] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 223.899352][ T6697]
[ 223.899378][ T6697] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 224.241752][ T6699] FAULT_INJECTION: forcing a failure.
[ 224.241752][ T6699] name failslab, interval 1, probability 0, space 0, times 0
[ 224.256215][ T6699] CPU: 1 UID: 0 PID: 6699 Comm: syz.0.279 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 224.256241][ T6699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 224.256252][ T6699] Call Trace:
[ 224.256259][ T6699]
[ 224.256267][ T6699] dump_stack_lvl+0x241/0x360
[ 224.256299][ T6699] ? __pfx_dump_stack_lvl+0x10/0x10
[ 224.256324][ T6699] ? __pfx__printk+0x10/0x10
[ 224.256351][ T6699] ? __pfx___might_resched+0x10/0x10
[ 224.256377][ T6699] should_fail_ex+0x424/0x570
[ 224.256400][ T6699] should_failslab+0xac/0x100
[ 224.256426][ T6699] kmem_cache_alloc_noprof+0x78/0x390
[ 224.256449][ T6699] ? __kernfs_new_node+0xdf/0x890
[ 224.256479][ T6699] __kernfs_new_node+0xdf/0x890
[ 224.256496][ T6699] ? __lock_acquire+0xad5/0xd80
[ 224.256521][ T6699] ? __pfx___kernfs_new_node+0x10/0x10
[ 224.256548][ T6699] ? kernfs_root+0x1c/0x230
[ 224.256567][ T6699] ? kernfs_root+0x1c/0x230
[ 224.256587][ T6699] kernfs_new_node+0x114/0x220
[ 224.256611][ T6699] kernfs_create_link+0xa5/0x1f0
[ 224.256638][ T6699] sysfs_do_create_link_sd+0x85/0x110
[ 224.256660][ T6699] software_node_notify+0xe1/0x1b0
[ 224.256680][ T6699] device_add+0x513/0xbf0
[ 224.256700][ T6699] ? iommufd_test+0x2efb/0x56a0
[ 224.256720][ T6699] iommufd_test+0x3350/0x56a0
[ 224.256748][ T6699] ? __pfx_iommufd_test+0x10/0x10
[ 224.256777][ T6699] ? __lock_acquire+0xad5/0xd80
[ 224.256826][ T6699] iommufd_fops_ioctl+0x4fc/0x610
[ 224.256852][ T6699] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 224.256879][ T6699] ? __fget_files+0x2a/0x420
[ 224.256900][ T6699] ? __fget_files+0x2a/0x420
[ 224.256920][ T6699] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 224.256946][ T6699] __se_sys_ioctl+0xf1/0x160
[ 224.256966][ T6699] do_syscall_64+0xf3/0x230
[ 224.256986][ T6699] ? clear_bhb_loop+0x45/0xa0
[ 224.257005][ T6699] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 224.257022][ T6699] RIP: 0033:0x7f9b9698d169
[ 224.257036][ T6699] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 224.257050][ T6699] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 224.257068][ T6699] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 224.257081][ T6699] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 224.257091][ T6699] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 224.257100][ T6699] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 224.257109][ T6699] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 224.257132][ T6699]
[ 224.572723][ T6699] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 224.624191][ T6701] FAULT_INJECTION: forcing a failure.
[ 224.624191][ T6701] name failslab, interval 1, probability 0, space 0, times 0
[ 224.637229][ T6701] CPU: 0 UID: 0 PID: 6701 Comm: syz.0.280 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 224.637254][ T6701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 224.637266][ T6701] Call Trace:
[ 224.637273][ T6701]
[ 224.637281][ T6701] dump_stack_lvl+0x241/0x360
[ 224.637313][ T6701] ? __pfx_dump_stack_lvl+0x10/0x10
[ 224.637337][ T6701] ? __pfx__printk+0x10/0x10
[ 224.637365][ T6701] ? __pfx___might_resched+0x10/0x10
[ 224.637391][ T6701] should_fail_ex+0x424/0x570
[ 224.637414][ T6701] should_failslab+0xac/0x100
[ 224.637440][ T6701] kmem_cache_alloc_noprof+0x78/0x390
[ 224.637463][ T6701] ? __kernfs_new_node+0xdf/0x890
[ 224.637486][ T6701] __kernfs_new_node+0xdf/0x890
[ 224.637504][ T6701] ? __lock_acquire+0xad5/0xd80
[ 224.637530][ T6701] ? __pfx___kernfs_new_node+0x10/0x10
[ 224.637556][ T6701] ? kernfs_root+0x1c/0x230
[ 224.637575][ T6701] ? kernfs_root+0x1c/0x230
[ 224.637595][ T6701] kernfs_new_node+0x114/0x220
[ 224.637618][ T6701] kernfs_create_link+0xa5/0x1f0
[ 224.637649][ T6701] sysfs_do_create_link_sd+0x85/0x110
[ 224.637666][ T6701] software_node_notify+0xe1/0x1b0
[ 224.637686][ T6701] device_add+0x513/0xbf0
[ 224.637706][ T6701] ? iommufd_test+0x2efb/0x56a0
[ 224.637726][ T6701] iommufd_test+0x3350/0x56a0
[ 224.637756][ T6701] ? __pfx_iommufd_test+0x10/0x10
[ 224.637786][ T6701] ? __lock_acquire+0xad5/0xd80
[ 224.637834][ T6701] iommufd_fops_ioctl+0x4fc/0x610
[ 224.637861][ T6701] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 224.637887][ T6701] ? __fget_files+0x2a/0x420
[ 224.637909][ T6701] ? __fget_files+0x2a/0x420
[ 224.637928][ T6701] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 224.637952][ T6701] __se_sys_ioctl+0xf1/0x160
[ 224.637974][ T6701] do_syscall_64+0xf3/0x230
[ 224.637995][ T6701] ? clear_bhb_loop+0x45/0xa0
[ 224.638017][ T6701] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 224.638033][ T6701] RIP: 0033:0x7f9b9698d169
[ 224.638049][ T6701] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 224.638063][ T6701] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 224.638082][ T6701] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 224.638095][ T6701] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 224.638106][ T6701] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 224.638116][ T6701] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 224.638127][ T6701] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 224.638154][ T6701]
[ 224.906834][ T6701] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 224.994539][ T6703] FAULT_INJECTION: forcing a failure.
[ 224.994539][ T6703] name failslab, interval 1, probability 0, space 0, times 0
[ 225.016520][ T6703] CPU: 0 UID: 0 PID: 6703 Comm: syz.0.281 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 225.016547][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 225.016558][ T6703] Call Trace:
[ 225.016566][ T6703]
[ 225.016575][ T6703] dump_stack_lvl+0x241/0x360
[ 225.016607][ T6703] ? __pfx_dump_stack_lvl+0x10/0x10
[ 225.016632][ T6703] ? __pfx__printk+0x10/0x10
[ 225.016659][ T6703] ? __pfx___might_resched+0x10/0x10
[ 225.016686][ T6703] should_fail_ex+0x424/0x570
[ 225.016710][ T6703] should_failslab+0xac/0x100
[ 225.016736][ T6703] kmem_cache_alloc_noprof+0x78/0x390
[ 225.016759][ T6703] ? __kernfs_new_node+0xdf/0x890
[ 225.016782][ T6703] __kernfs_new_node+0xdf/0x890
[ 225.016801][ T6703] ? __lock_acquire+0xad5/0xd80
[ 225.016824][ T6703] ? __pfx___kernfs_new_node+0x10/0x10
[ 225.016853][ T6703] ? kernfs_root+0x1c/0x230
[ 225.016872][ T6703] ? kernfs_root+0x1c/0x230
[ 225.016892][ T6703] kernfs_new_node+0x114/0x220
[ 225.016915][ T6703] kernfs_create_dir_ns+0x43/0x120
[ 225.016939][ T6703] sysfs_create_dir_ns+0x1a2/0x3f0
[ 225.016960][ T6703] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 225.016986][ T6703] kobject_add_internal+0x435/0x8d0
[ 225.017018][ T6703] kobject_add+0x15b/0x230
[ 225.017040][ T6703] ? kobject_put+0x43d/0x480
[ 225.017061][ T6703] ? __pfx_kobject_add+0x10/0x10
[ 225.017085][ T6703] ? bus_get_dev_root+0x127/0x160
[ 225.017107][ T6703] ? get_device_parent+0x405/0x410
[ 225.017143][ T6703] ? device_add+0x318/0xbf0
[ 225.017165][ T6703] device_add+0x4e5/0xbf0
[ 225.017186][ T6703] ? iommufd_test+0x2efb/0x56a0
[ 225.017206][ T6703] iommufd_test+0x3350/0x56a0
[ 225.017236][ T6703] ? __pfx_iommufd_test+0x10/0x10
[ 225.017265][ T6703] ? __lock_acquire+0xad5/0xd80
[ 225.017315][ T6703] iommufd_fops_ioctl+0x4fc/0x610
[ 225.017342][ T6703] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 225.017369][ T6703] ? __fget_files+0x2a/0x420
[ 225.017400][ T6703] ? __fget_files+0x2a/0x420
[ 225.017421][ T6703] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 225.017446][ T6703] __se_sys_ioctl+0xf1/0x160
[ 225.017469][ T6703] do_syscall_64+0xf3/0x230
[ 225.017490][ T6703] ? clear_bhb_loop+0x45/0xa0
[ 225.017515][ T6703] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 225.017531][ T6703] RIP: 0033:0x7f9b9698d169
[ 225.017547][ T6703] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 225.017562][ T6703] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 225.017582][ T6703] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 225.017594][ T6703] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 225.017606][ T6703] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 225.017617][ T6703] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 225.017627][ T6703] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 225.017657][ T6703]
[ 225.323127][ T6703] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 225.400292][ T6705] FAULT_INJECTION: forcing a failure.
[ 225.400292][ T6705] name failslab, interval 1, probability 0, space 0, times 0
[ 225.415942][ T6705] CPU: 1 UID: 0 PID: 6705 Comm: syz.0.282 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 225.415968][ T6705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 225.415979][ T6705] Call Trace:
[ 225.415986][ T6705]
[ 225.415995][ T6705] dump_stack_lvl+0x241/0x360
[ 225.416027][ T6705] ? __pfx_dump_stack_lvl+0x10/0x10
[ 225.416051][ T6705] ? __pfx__printk+0x10/0x10
[ 225.416079][ T6705] ? __pfx___might_resched+0x10/0x10
[ 225.416105][ T6705] should_fail_ex+0x424/0x570
[ 225.416129][ T6705] should_failslab+0xac/0x100
[ 225.416155][ T6705] kmem_cache_alloc_noprof+0x78/0x390
[ 225.416178][ T6705] ? __kernfs_new_node+0xdf/0x890
[ 225.416201][ T6705] __kernfs_new_node+0xdf/0x890
[ 225.416219][ T6705] ? __lock_acquire+0xad5/0xd80
[ 225.416244][ T6705] ? __pfx___kernfs_new_node+0x10/0x10
[ 225.416270][ T6705] ? kernfs_root+0x1c/0x230
[ 225.416289][ T6705] ? kernfs_root+0x1c/0x230
[ 225.416310][ T6705] kernfs_new_node+0x114/0x220
[ 225.416333][ T6705] kernfs_create_link+0xa5/0x1f0
[ 225.416366][ T6705] sysfs_do_create_link_sd+0x85/0x110
[ 225.416386][ T6705] software_node_notify+0xe1/0x1b0
[ 225.416407][ T6705] device_add+0x513/0xbf0
[ 225.416428][ T6705] ? iommufd_test+0x2efb/0x56a0
[ 225.416448][ T6705] iommufd_test+0x3350/0x56a0
[ 225.416478][ T6705] ? __pfx_iommufd_test+0x10/0x10
[ 225.416508][ T6705] ? __lock_acquire+0xad5/0xd80
[ 225.416557][ T6705] iommufd_fops_ioctl+0x4fc/0x610
[ 225.416584][ T6705] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 225.416611][ T6705] ? __fget_files+0x2a/0x420
[ 225.416633][ T6705] ? __fget_files+0x2a/0x420
[ 225.416653][ T6705] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 225.416677][ T6705] __se_sys_ioctl+0xf1/0x160
[ 225.416700][ T6705] do_syscall_64+0xf3/0x230
[ 225.416721][ T6705] ? clear_bhb_loop+0x45/0xa0
[ 225.416742][ T6705] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 225.416758][ T6705] RIP: 0033:0x7f9b9698d169
[ 225.416774][ T6705] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 225.416788][ T6705] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 225.416807][ T6705] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 225.416820][ T6705] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 225.416831][ T6705] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 225.416842][ T6705] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 225.416853][ T6705] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 225.416881][ T6705]
[ 225.684383][ T6705] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 225.739484][ T6707] FAULT_INJECTION: forcing a failure.
[ 225.739484][ T6707] name failslab, interval 1, probability 0, space 0, times 0
[ 225.765519][ T6707] CPU: 0 UID: 0 PID: 6707 Comm: syz.0.283 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 225.765546][ T6707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 225.765557][ T6707] Call Trace:
[ 225.765565][ T6707]
[ 225.765573][ T6707] dump_stack_lvl+0x241/0x360
[ 225.765605][ T6707] ? __pfx_dump_stack_lvl+0x10/0x10
[ 225.765629][ T6707] ? __pfx__printk+0x10/0x10
[ 225.765658][ T6707] ? __pfx___might_resched+0x10/0x10
[ 225.765685][ T6707] should_fail_ex+0x424/0x570
[ 225.765708][ T6707] should_failslab+0xac/0x100
[ 225.765734][ T6707] kmem_cache_alloc_noprof+0x78/0x390
[ 225.765757][ T6707] ? __kernfs_new_node+0xdf/0x890
[ 225.765781][ T6707] __kernfs_new_node+0xdf/0x890
[ 225.765802][ T6707] ? __lock_acquire+0xad5/0xd80
[ 225.765825][ T6707] ? __pfx___kernfs_new_node+0x10/0x10
[ 225.765855][ T6707] ? kernfs_root+0x1c/0x230
[ 225.765873][ T6707] ? kernfs_root+0x1c/0x230
[ 225.765893][ T6707] kernfs_new_node+0x114/0x220
[ 225.765917][ T6707] kernfs_create_dir_ns+0x43/0x120
[ 225.765940][ T6707] sysfs_create_dir_ns+0x1a2/0x3f0
[ 225.765962][ T6707] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 225.765988][ T6707] kobject_add_internal+0x435/0x8d0
[ 225.766021][ T6707] kobject_add+0x15b/0x230
[ 225.766045][ T6707] ? kobject_put+0x43d/0x480
[ 225.766066][ T6707] ? __pfx_kobject_add+0x10/0x10
[ 225.766088][ T6707] ? bus_get_dev_root+0x127/0x160
[ 225.766107][ T6707] ? get_device_parent+0x405/0x410
[ 225.766123][ T6707] ? device_add+0x318/0xbf0
[ 225.766141][ T6707] device_add+0x4e5/0xbf0
[ 225.766158][ T6707] ? iommufd_test+0x2efb/0x56a0
[ 225.766177][ T6707] iommufd_test+0x3350/0x56a0
[ 225.766204][ T6707] ? __pfx_iommufd_test+0x10/0x10
[ 225.766232][ T6707] ? __lock_acquire+0xad5/0xd80
[ 225.766277][ T6707] iommufd_fops_ioctl+0x4fc/0x610
[ 225.766300][ T6707] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 225.766325][ T6707] ? __fget_files+0x2a/0x420
[ 225.766344][ T6707] ? __fget_files+0x2a/0x420
[ 225.766365][ T6707] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 225.766393][ T6707] __se_sys_ioctl+0xf1/0x160
[ 225.766414][ T6707] do_syscall_64+0xf3/0x230
[ 225.766433][ T6707] ? clear_bhb_loop+0x45/0xa0
[ 225.766451][ T6707] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 225.766468][ T6707] RIP: 0033:0x7f9b9698d169
[ 225.766483][ T6707] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 225.766497][ T6707] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 225.766515][ T6707] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 225.766527][ T6707] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 225.766539][ T6707] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 225.766550][ T6707] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 225.766559][ T6707] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 225.766586][ T6707]
[ 225.766611][ T6707] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 226.163940][ T6709] FAULT_INJECTION: forcing a failure.
[ 226.163940][ T6709] name failslab, interval 1, probability 0, space 0, times 0
[ 226.185545][ T6709] CPU: 0 UID: 0 PID: 6709 Comm: syz.0.284 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 226.185574][ T6709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 226.185585][ T6709] Call Trace:
[ 226.185593][ T6709]
[ 226.185601][ T6709] dump_stack_lvl+0x241/0x360
[ 226.185634][ T6709] ? __pfx_dump_stack_lvl+0x10/0x10
[ 226.185658][ T6709] ? __pfx__printk+0x10/0x10
[ 226.185686][ T6709] ? __pfx___might_resched+0x10/0x10
[ 226.185713][ T6709] should_fail_ex+0x424/0x570
[ 226.185736][ T6709] should_failslab+0xac/0x100
[ 226.185762][ T6709] kmem_cache_alloc_noprof+0x78/0x390
[ 226.185785][ T6709] ? __kernfs_new_node+0xdf/0x890
[ 226.185809][ T6709] __kernfs_new_node+0xdf/0x890
[ 226.185826][ T6709] ? __lock_acquire+0xad5/0xd80
[ 226.185851][ T6709] ? __pfx___kernfs_new_node+0x10/0x10
[ 226.185878][ T6709] ? kernfs_root+0x1c/0x230
[ 226.185897][ T6709] ? kernfs_root+0x1c/0x230
[ 226.185916][ T6709] kernfs_new_node+0x114/0x220
[ 226.185940][ T6709] kernfs_create_link+0xa5/0x1f0
[ 226.185966][ T6709] sysfs_do_create_link_sd+0x85/0x110
[ 226.185987][ T6709] software_node_notify+0xe1/0x1b0
[ 226.186010][ T6709] device_add+0x513/0xbf0
[ 226.186032][ T6709] ? iommufd_test+0x2efb/0x56a0
[ 226.186052][ T6709] iommufd_test+0x3350/0x56a0
[ 226.186083][ T6709] ? __pfx_iommufd_test+0x10/0x10
[ 226.186112][ T6709] ? __lock_acquire+0xad5/0xd80
[ 226.186162][ T6709] iommufd_fops_ioctl+0x4fc/0x610
[ 226.186188][ T6709] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 226.186215][ T6709] ? __fget_files+0x2a/0x420
[ 226.186237][ T6709] ? __fget_files+0x2a/0x420
[ 226.186256][ T6709] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 226.186282][ T6709] __se_sys_ioctl+0xf1/0x160
[ 226.186310][ T6709] do_syscall_64+0xf3/0x230
[ 226.186332][ T6709] ? clear_bhb_loop+0x45/0xa0
[ 226.186354][ T6709] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 226.186371][ T6709] RIP: 0033:0x7f9b9698d169
[ 226.186386][ T6709] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 226.186401][ T6709] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 226.186421][ T6709] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 226.186433][ T6709] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 226.186444][ T6709] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 226.186455][ T6709] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 226.186466][ T6709] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 226.186493][ T6709]
[ 226.187231][ T6709] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 226.494397][ T6711] FAULT_INJECTION: forcing a failure.
[ 226.494397][ T6711] name failslab, interval 1, probability 0, space 0, times 0
[ 226.545191][ T6711] CPU: 1 UID: 0 PID: 6711 Comm: syz.0.285 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 226.545219][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 226.545230][ T6711] Call Trace:
[ 226.545237][ T6711]
[ 226.545246][ T6711] dump_stack_lvl+0x241/0x360
[ 226.545278][ T6711] ? __pfx_dump_stack_lvl+0x10/0x10
[ 226.545302][ T6711] ? __pfx__printk+0x10/0x10
[ 226.545329][ T6711] ? __pfx___might_resched+0x10/0x10
[ 226.545356][ T6711] should_fail_ex+0x424/0x570
[ 226.545380][ T6711] should_failslab+0xac/0x100
[ 226.545411][ T6711] kmem_cache_alloc_noprof+0x78/0x390
[ 226.545434][ T6711] ? __kernfs_new_node+0xdf/0x890
[ 226.545457][ T6711] __kernfs_new_node+0xdf/0x890
[ 226.545475][ T6711] ? __lock_acquire+0xad5/0xd80
[ 226.545500][ T6711] ? __pfx___kernfs_new_node+0x10/0x10
[ 226.545527][ T6711] ? kernfs_root+0x1c/0x230
[ 226.545546][ T6711] ? kernfs_root+0x1c/0x230
[ 226.545566][ T6711] kernfs_new_node+0x114/0x220
[ 226.545589][ T6711] kernfs_create_link+0xa5/0x1f0
[ 226.545616][ T6711] sysfs_do_create_link_sd+0x85/0x110
[ 226.545636][ T6711] software_node_notify+0xe1/0x1b0
[ 226.545657][ T6711] device_add+0x513/0xbf0
[ 226.545679][ T6711] ? iommufd_test+0x2efb/0x56a0
[ 226.545700][ T6711] iommufd_test+0x3350/0x56a0
[ 226.545730][ T6711] ? __pfx_iommufd_test+0x10/0x10
[ 226.545760][ T6711] ? __lock_acquire+0xad5/0xd80
[ 226.545809][ T6711] iommufd_fops_ioctl+0x4fc/0x610
[ 226.545836][ T6711] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 226.545862][ T6711] ? __fget_files+0x2a/0x420
[ 226.545884][ T6711] ? __fget_files+0x2a/0x420
[ 226.545904][ T6711] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 226.545929][ T6711] __se_sys_ioctl+0xf1/0x160
[ 226.545952][ T6711] do_syscall_64+0xf3/0x230
[ 226.545974][ T6711] ? clear_bhb_loop+0x45/0xa0
[ 226.545994][ T6711] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 226.546017][ T6711] RIP: 0033:0x7f9b9698d169
[ 226.546031][ T6711] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 226.546045][ T6711] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 226.546065][ T6711] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 226.546077][ T6711] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 226.546089][ T6711] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 226.546099][ T6711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 226.546110][ T6711] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 226.546137][ T6711]
[ 226.546883][ T6711] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 226.852179][ T6713] FAULT_INJECTION: forcing a failure.
[ 226.852179][ T6713] name failslab, interval 1, probability 0, space 0, times 0
[ 226.869933][ T6713] CPU: 0 UID: 0 PID: 6713 Comm: syz.0.286 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 226.869959][ T6713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 226.869970][ T6713] Call Trace:
[ 226.869978][ T6713]
[ 226.869985][ T6713] dump_stack_lvl+0x241/0x360
[ 226.870018][ T6713] ? __pfx_dump_stack_lvl+0x10/0x10
[ 226.870042][ T6713] ? __pfx__printk+0x10/0x10
[ 226.870069][ T6713] ? __pfx___might_resched+0x10/0x10
[ 226.870095][ T6713] should_fail_ex+0x424/0x570
[ 226.870118][ T6713] should_failslab+0xac/0x100
[ 226.870144][ T6713] kmem_cache_alloc_noprof+0x78/0x390
[ 226.870167][ T6713] ? __kernfs_new_node+0xdf/0x890
[ 226.870190][ T6713] __kernfs_new_node+0xdf/0x890
[ 226.870210][ T6713] ? __lock_acquire+0xad5/0xd80
[ 226.870239][ T6713] ? __pfx___kernfs_new_node+0x10/0x10
[ 226.870268][ T6713] ? kernfs_root+0x1c/0x230
[ 226.870287][ T6713] ? kernfs_root+0x1c/0x230
[ 226.870307][ T6713] kernfs_new_node+0x114/0x220
[ 226.870330][ T6713] kernfs_create_dir_ns+0x43/0x120
[ 226.870353][ T6713] sysfs_create_dir_ns+0x1a2/0x3f0
[ 226.870374][ T6713] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 226.870401][ T6713] kobject_add_internal+0x435/0x8d0
[ 226.870432][ T6713] kobject_add+0x15b/0x230
[ 226.870456][ T6713] ? kobject_put+0x43d/0x480
[ 226.870478][ T6713] ? __pfx_kobject_add+0x10/0x10
[ 226.870501][ T6713] ? bus_get_dev_root+0x127/0x160
[ 226.870522][ T6713] ? get_device_parent+0x405/0x410
[ 226.870541][ T6713] ? device_add+0x318/0xbf0
[ 226.870562][ T6713] device_add+0x4e5/0xbf0
[ 226.870583][ T6713] ? iommufd_test+0x2efb/0x56a0
[ 226.870605][ T6713] iommufd_test+0x3350/0x56a0
[ 226.870635][ T6713] ? __pfx_iommufd_test+0x10/0x10
[ 226.870665][ T6713] ? __lock_acquire+0xad5/0xd80
[ 226.870714][ T6713] iommufd_fops_ioctl+0x4fc/0x610
[ 226.870742][ T6713] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 226.870769][ T6713] ? __fget_files+0x2a/0x420
[ 226.870791][ T6713] ? __fget_files+0x2a/0x420
[ 226.870811][ T6713] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 226.870837][ T6713] __se_sys_ioctl+0xf1/0x160
[ 226.870859][ T6713] do_syscall_64+0xf3/0x230
[ 226.870881][ T6713] ? clear_bhb_loop+0x45/0xa0
[ 226.870902][ T6713] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 226.870919][ T6713] RIP: 0033:0x7f9b9698d169
[ 226.870934][ T6713] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 226.870948][ T6713] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 226.870967][ T6713] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 226.870980][ T6713] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 226.870992][ T6713] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 226.871003][ T6713] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 226.871013][ T6713] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 226.871041][ T6713]
[ 226.871067][ T6713] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 227.230058][ T6715] FAULT_INJECTION: forcing a failure.
[ 227.230058][ T6715] name failslab, interval 1, probability 0, space 0, times 0
[ 227.242893][ T6715] CPU: 0 UID: 0 PID: 6715 Comm: syz.0.287 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 227.242918][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 227.242929][ T6715] Call Trace:
[ 227.242937][ T6715]
[ 227.242945][ T6715] dump_stack_lvl+0x241/0x360
2025/04/10 19:10:22 executed programs: 273
[ 227.242977][ T6715] ? __pfx_dump_stack_lvl+0x10/0x10
[ 227.243001][ T6715] ? __pfx__printk+0x10/0x10
[ 227.243028][ T6715] ? __pfx___might_resched+0x10/0x10
[ 227.243054][ T6715] should_fail_ex+0x424/0x570
[ 227.243078][ T6715] should_failslab+0xac/0x100
[ 227.243104][ T6715] kmem_cache_alloc_noprof+0x78/0x390
[ 227.243128][ T6715] ? __kernfs_new_node+0xdf/0x890
[ 227.243151][ T6715] __kernfs_new_node+0xdf/0x890
[ 227.243169][ T6715] ? __lock_acquire+0xad5/0xd80
[ 227.243195][ T6715] ? __pfx___kernfs_new_node+0x10/0x10
[ 227.243229][ T6715] ? kernfs_root+0x1c/0x230
[ 227.243247][ T6715] ? kernfs_root+0x1c/0x230
[ 227.243267][ T6715] kernfs_new_node+0x114/0x220
[ 227.243291][ T6715] kernfs_create_link+0xa5/0x1f0
[ 227.243317][ T6715] sysfs_do_create_link_sd+0x85/0x110
[ 227.243337][ T6715] software_node_notify+0xe1/0x1b0
[ 227.243359][ T6715] device_add+0x513/0xbf0
[ 227.243381][ T6715] ? iommufd_test+0x2efb/0x56a0
[ 227.243402][ T6715] iommufd_test+0x3350/0x56a0
[ 227.243432][ T6715] ? __pfx_iommufd_test+0x10/0x10
[ 227.243462][ T6715] ? __lock_acquire+0xad5/0xd80
[ 227.243525][ T6715] iommufd_fops_ioctl+0x4fc/0x610
[ 227.243552][ T6715] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 227.243580][ T6715] ? __fget_files+0x2a/0x420
[ 227.243602][ T6715] ? __fget_files+0x2a/0x420
[ 227.243622][ T6715] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 227.243647][ T6715] __se_sys_ioctl+0xf1/0x160
[ 227.243669][ T6715] do_syscall_64+0xf3/0x230
[ 227.243692][ T6715] ? clear_bhb_loop+0x45/0xa0
[ 227.243713][ T6715] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 227.243729][ T6715] RIP: 0033:0x7f9b9698d169
[ 227.243745][ T6715] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 227.243758][ T6715] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 227.243777][ T6715] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 227.243790][ T6715] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 227.243801][ T6715] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 227.243812][ T6715] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 227.243823][ T6715] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 227.243851][ T6715]
[ 227.244609][ T6715] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 227.551908][ T6717] FAULT_INJECTION: forcing a failure.
[ 227.551908][ T6717] name failslab, interval 1, probability 0, space 0, times 0
[ 227.605854][ T6717] CPU: 1 UID: 0 PID: 6717 Comm: syz.0.288 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 227.605881][ T6717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 227.605893][ T6717] Call Trace:
[ 227.605901][ T6717]
[ 227.605909][ T6717] dump_stack_lvl+0x241/0x360
[ 227.605951][ T6717] ? __pfx_dump_stack_lvl+0x10/0x10
[ 227.605976][ T6717] ? __pfx__printk+0x10/0x10
[ 227.606003][ T6717] ? __pfx___might_resched+0x10/0x10
[ 227.606029][ T6717] should_fail_ex+0x424/0x570
[ 227.606053][ T6717] should_failslab+0xac/0x100
[ 227.606078][ T6717] kmem_cache_alloc_noprof+0x78/0x390
[ 227.606101][ T6717] ? __kernfs_new_node+0xdf/0x890
[ 227.606124][ T6717] __kernfs_new_node+0xdf/0x890
[ 227.606142][ T6717] ? __lock_acquire+0xad5/0xd80
[ 227.606166][ T6717] ? __pfx___kernfs_new_node+0x10/0x10
[ 227.606193][ T6717] ? kernfs_root+0x1c/0x230
[ 227.606212][ T6717] ? kernfs_root+0x1c/0x230
[ 227.606232][ T6717] kernfs_new_node+0x114/0x220
[ 227.606255][ T6717] kernfs_create_link+0xa5/0x1f0
[ 227.606282][ T6717] sysfs_do_create_link_sd+0x85/0x110
[ 227.606302][ T6717] software_node_notify+0xe1/0x1b0
[ 227.606324][ T6717] device_add+0x513/0xbf0
[ 227.606345][ T6717] ? iommufd_test+0x2efb/0x56a0
[ 227.606367][ T6717] iommufd_test+0x3350/0x56a0
[ 227.606397][ T6717] ? __pfx_iommufd_test+0x10/0x10
[ 227.606426][ T6717] ? __lock_acquire+0xad5/0xd80
[ 227.606476][ T6717] iommufd_fops_ioctl+0x4fc/0x610
[ 227.606503][ T6717] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 227.606531][ T6717] ? __fget_files+0x2a/0x420
[ 227.606552][ T6717] ? __fget_files+0x2a/0x420
[ 227.606573][ T6717] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 227.606598][ T6717] __se_sys_ioctl+0xf1/0x160
[ 227.606621][ T6717] do_syscall_64+0xf3/0x230
[ 227.606643][ T6717] ? clear_bhb_loop+0x45/0xa0
[ 227.606664][ T6717] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 227.606681][ T6717] RIP: 0033:0x7f9b9698d169
[ 227.606696][ T6717] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 227.606711][ T6717] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 227.606730][ T6717] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 227.606742][ T6717] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 227.606754][ T6717] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 227.606764][ T6717] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 227.606774][ T6717] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 227.606801][ T6717]
[ 227.607541][ T6717] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 227.923976][ T6719] FAULT_INJECTION: forcing a failure.
[ 227.923976][ T6719] name failslab, interval 1, probability 0, space 0, times 0
[ 227.972076][ T6719] CPU: 0 UID: 0 PID: 6719 Comm: syz.0.289 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 227.972103][ T6719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 227.972120][ T6719] Call Trace:
[ 227.972128][ T6719]
[ 227.972136][ T6719] dump_stack_lvl+0x241/0x360
[ 227.972169][ T6719] ? __pfx_dump_stack_lvl+0x10/0x10
[ 227.972193][ T6719] ? __pfx__printk+0x10/0x10
[ 227.972221][ T6719] ? __pfx___might_resched+0x10/0x10
[ 227.972246][ T6719] should_fail_ex+0x424/0x570
[ 227.972270][ T6719] should_failslab+0xac/0x100
[ 227.972297][ T6719] kmem_cache_alloc_noprof+0x78/0x390
[ 227.972320][ T6719] ? __kernfs_new_node+0xdf/0x890
[ 227.972343][ T6719] __kernfs_new_node+0xdf/0x890
[ 227.972361][ T6719] ? __lock_acquire+0xad5/0xd80
[ 227.972386][ T6719] ? __pfx___kernfs_new_node+0x10/0x10
[ 227.972413][ T6719] ? kernfs_root+0x1c/0x230
[ 227.972432][ T6719] ? kernfs_root+0x1c/0x230
[ 227.972452][ T6719] kernfs_new_node+0x114/0x220
[ 227.972475][ T6719] kernfs_create_link+0xa5/0x1f0
[ 227.972502][ T6719] sysfs_do_create_link_sd+0x85/0x110
[ 227.972522][ T6719] software_node_notify+0xe1/0x1b0
[ 227.972543][ T6719] device_add+0x513/0xbf0
[ 227.972565][ T6719] ? iommufd_test+0x2efb/0x56a0
[ 227.972587][ T6719] iommufd_test+0x3350/0x56a0
[ 227.972616][ T6719] ? __pfx_iommufd_test+0x10/0x10
[ 227.972646][ T6719] ? __lock_acquire+0xad5/0xd80
[ 227.972696][ T6719] iommufd_fops_ioctl+0x4fc/0x610
[ 227.972723][ T6719] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 227.972750][ T6719] ? __fget_files+0x2a/0x420
[ 227.972772][ T6719] ? __fget_files+0x2a/0x420
[ 227.972792][ T6719] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 227.972817][ T6719] __se_sys_ioctl+0xf1/0x160
[ 227.972840][ T6719] do_syscall_64+0xf3/0x230
[ 227.972861][ T6719] ? clear_bhb_loop+0x45/0xa0
[ 227.972882][ T6719] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 227.972899][ T6719] RIP: 0033:0x7f9b9698d169
[ 227.972915][ T6719] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 227.972929][ T6719] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 227.972949][ T6719] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 227.972961][ T6719] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 227.972972][ T6719] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 227.972983][ T6719] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 227.972993][ T6719] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 227.973021][ T6719]
[ 227.973778][ T6719] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 228.318839][ T6721] FAULT_INJECTION: forcing a failure.
[ 228.318839][ T6721] name failslab, interval 1, probability 0, space 0, times 0
[ 228.337175][ T6721] CPU: 1 UID: 0 PID: 6721 Comm: syz.0.290 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 228.337201][ T6721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 228.337212][ T6721] Call Trace:
[ 228.337220][ T6721]
[ 228.337228][ T6721] dump_stack_lvl+0x241/0x360
[ 228.337261][ T6721] ? __pfx_dump_stack_lvl+0x10/0x10
[ 228.337284][ T6721] ? __pfx__printk+0x10/0x10
[ 228.337312][ T6721] ? __pfx___might_resched+0x10/0x10
[ 228.337337][ T6721] should_fail_ex+0x424/0x570
[ 228.337360][ T6721] should_failslab+0xac/0x100
[ 228.337386][ T6721] kmem_cache_alloc_noprof+0x78/0x390
[ 228.337409][ T6721] ? __kernfs_new_node+0xdf/0x890
[ 228.337432][ T6721] __kernfs_new_node+0xdf/0x890
[ 228.337452][ T6721] ? __lock_acquire+0xad5/0xd80
[ 228.337475][ T6721] ? __pfx___kernfs_new_node+0x10/0x10
[ 228.337504][ T6721] ? kernfs_root+0x1c/0x230
[ 228.337523][ T6721] ? kernfs_root+0x1c/0x230
[ 228.337541][ T6721] kernfs_new_node+0x114/0x220
[ 228.337565][ T6721] kernfs_create_dir_ns+0x43/0x120
[ 228.337588][ T6721] sysfs_create_dir_ns+0x1a2/0x3f0
[ 228.337609][ T6721] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 228.337635][ T6721] kobject_add_internal+0x435/0x8d0
[ 228.337674][ T6721] kobject_add+0x15b/0x230
[ 228.337696][ T6721] ? kobject_put+0x43d/0x480
[ 228.337715][ T6721] ? __pfx_kobject_add+0x10/0x10
[ 228.337736][ T6721] ? bus_get_dev_root+0x127/0x160
[ 228.337756][ T6721] ? get_device_parent+0x405/0x410
[ 228.337775][ T6721] ? device_add+0x318/0xbf0
[ 228.337796][ T6721] device_add+0x4e5/0xbf0
[ 228.337817][ T6721] ? iommufd_test+0x2efb/0x56a0
[ 228.337838][ T6721] iommufd_test+0x3350/0x56a0
[ 228.337869][ T6721] ? __pfx_iommufd_test+0x10/0x10
[ 228.337899][ T6721] ? __lock_acquire+0xad5/0xd80
[ 228.337956][ T6721] iommufd_fops_ioctl+0x4fc/0x610
[ 228.337982][ T6721] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 228.338010][ T6721] ? __fget_files+0x2a/0x420
[ 228.338032][ T6721] ? __fget_files+0x2a/0x420
[ 228.338053][ T6721] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 228.338077][ T6721] __se_sys_ioctl+0xf1/0x160
[ 228.338098][ T6721] do_syscall_64+0xf3/0x230
[ 228.338119][ T6721] ? clear_bhb_loop+0x45/0xa0
[ 228.338139][ T6721] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 228.338155][ T6721] RIP: 0033:0x7f9b9698d169
[ 228.338172][ T6721] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 228.338185][ T6721] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 228.338205][ T6721] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 228.338218][ T6721] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 228.338229][ T6721] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 228.338240][ T6721] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 228.338251][ T6721] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 228.338279][ T6721]
[ 228.636657][ T6721] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 228.689530][ T6723] FAULT_INJECTION: forcing a failure.
[ 228.689530][ T6723] name failslab, interval 1, probability 0, space 0, times 0
[ 228.703814][ T6723] CPU: 0 UID: 0 PID: 6723 Comm: syz.0.291 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 228.703839][ T6723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 228.703850][ T6723] Call Trace:
[ 228.703858][ T6723]
[ 228.703865][ T6723] dump_stack_lvl+0x241/0x360
[ 228.703898][ T6723] ? __pfx_dump_stack_lvl+0x10/0x10
[ 228.703921][ T6723] ? __pfx__printk+0x10/0x10
[ 228.703948][ T6723] ? __pfx___might_resched+0x10/0x10
[ 228.703975][ T6723] should_fail_ex+0x424/0x570
[ 228.703999][ T6723] should_failslab+0xac/0x100
[ 228.704024][ T6723] kmem_cache_alloc_noprof+0x78/0x390
[ 228.704047][ T6723] ? __kernfs_new_node+0xdf/0x890
[ 228.704070][ T6723] __kernfs_new_node+0xdf/0x890
[ 228.704090][ T6723] ? __lock_acquire+0xad5/0xd80
[ 228.704112][ T6723] ? __pfx___kernfs_new_node+0x10/0x10
[ 228.704149][ T6723] ? kernfs_root+0x1c/0x230
[ 228.704168][ T6723] ? kernfs_root+0x1c/0x230
[ 228.704188][ T6723] kernfs_new_node+0x114/0x220
[ 228.704212][ T6723] kernfs_create_dir_ns+0x43/0x120
[ 228.704236][ T6723] sysfs_create_dir_ns+0x1a2/0x3f0
[ 228.704257][ T6723] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 228.704283][ T6723] kobject_add_internal+0x435/0x8d0
[ 228.704315][ T6723] kobject_add+0x15b/0x230
[ 228.704338][ T6723] ? kobject_put+0x43d/0x480
[ 228.704360][ T6723] ? __pfx_kobject_add+0x10/0x10
[ 228.704383][ T6723] ? bus_get_dev_root+0x127/0x160
[ 228.704405][ T6723] ? get_device_parent+0x405/0x410
[ 228.704423][ T6723] ? device_add+0x318/0xbf0
[ 228.704444][ T6723] device_add+0x4e5/0xbf0
[ 228.704465][ T6723] ? iommufd_test+0x2efb/0x56a0
[ 228.704487][ T6723] iommufd_test+0x3350/0x56a0
[ 228.704517][ T6723] ? __pfx_iommufd_test+0x10/0x10
[ 228.704546][ T6723] ? __lock_acquire+0xad5/0xd80
[ 228.704596][ T6723] iommufd_fops_ioctl+0x4fc/0x610
[ 228.704622][ T6723] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 228.704650][ T6723] ? __fget_files+0x2a/0x420
[ 228.704672][ T6723] ? __fget_files+0x2a/0x420
[ 228.704691][ T6723] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 228.704716][ T6723] __se_sys_ioctl+0xf1/0x160
[ 228.704738][ T6723] do_syscall_64+0xf3/0x230
[ 228.704759][ T6723] ? clear_bhb_loop+0x45/0xa0
[ 228.704780][ T6723] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 228.704797][ T6723] RIP: 0033:0x7f9b9698d169
[ 228.704812][ T6723] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 228.704826][ T6723] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 228.704845][ T6723] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 228.704858][ T6723] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 228.704869][ T6723] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 228.704879][ T6723] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 228.704889][ T6723] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 228.704914][ T6723]
[ 228.704939][ T6723] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 229.099179][ T6725] FAULT_INJECTION: forcing a failure.
[ 229.099179][ T6725] name failslab, interval 1, probability 0, space 0, times 0
[ 229.125508][ T6725] CPU: 1 UID: 0 PID: 6725 Comm: syz.0.292 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 229.125535][ T6725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 229.125546][ T6725] Call Trace:
[ 229.125553][ T6725]
[ 229.125562][ T6725] dump_stack_lvl+0x241/0x360
[ 229.125594][ T6725] ? __pfx_dump_stack_lvl+0x10/0x10
[ 229.125618][ T6725] ? __pfx__printk+0x10/0x10
[ 229.125646][ T6725] ? __pfx___might_resched+0x10/0x10
[ 229.125672][ T6725] should_fail_ex+0x424/0x570
[ 229.125696][ T6725] should_failslab+0xac/0x100
[ 229.125730][ T6725] kmem_cache_alloc_noprof+0x78/0x390
[ 229.125754][ T6725] ? __kernfs_new_node+0xdf/0x890
[ 229.125777][ T6725] __kernfs_new_node+0xdf/0x890
[ 229.125795][ T6725] ? __lock_acquire+0xad5/0xd80
[ 229.125821][ T6725] ? __pfx___kernfs_new_node+0x10/0x10
[ 229.125847][ T6725] ? kernfs_root+0x1c/0x230
[ 229.125865][ T6725] ? kernfs_root+0x1c/0x230
[ 229.125886][ T6725] kernfs_new_node+0x114/0x220
[ 229.125909][ T6725] kernfs_create_link+0xa5/0x1f0
[ 229.125935][ T6725] sysfs_do_create_link_sd+0x85/0x110
[ 229.125956][ T6725] software_node_notify+0xe1/0x1b0
[ 229.125978][ T6725] device_add+0x513/0xbf0
[ 229.125999][ T6725] ? iommufd_test+0x2efb/0x56a0
[ 229.126020][ T6725] iommufd_test+0x3350/0x56a0
[ 229.126051][ T6725] ? __pfx_iommufd_test+0x10/0x10
[ 229.126081][ T6725] ? __lock_acquire+0xad5/0xd80
[ 229.126130][ T6725] iommufd_fops_ioctl+0x4fc/0x610
[ 229.126157][ T6725] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 229.126184][ T6725] ? __fget_files+0x2a/0x420
[ 229.126206][ T6725] ? __fget_files+0x2a/0x420
[ 229.126226][ T6725] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 229.126251][ T6725] __se_sys_ioctl+0xf1/0x160
[ 229.126273][ T6725] do_syscall_64+0xf3/0x230
[ 229.126295][ T6725] ? clear_bhb_loop+0x45/0xa0
[ 229.126316][ T6725] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 229.126332][ T6725] RIP: 0033:0x7f9b9698d169
[ 229.126348][ T6725] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 229.126362][ T6725] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.126381][ T6725] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 229.126394][ T6725] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 229.126406][ T6725] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 229.126417][ T6725] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 229.126427][ T6725] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 229.126454][ T6725]
[ 229.127201][ T6725] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 229.438718][ T6727] FAULT_INJECTION: forcing a failure.
[ 229.438718][ T6727] name failslab, interval 1, probability 0, space 0, times 0
[ 229.467844][ T6727] CPU: 0 UID: 0 PID: 6727 Comm: syz.0.293 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 229.467872][ T6727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 229.467884][ T6727] Call Trace:
[ 229.467891][ T6727]
[ 229.467899][ T6727] dump_stack_lvl+0x241/0x360
[ 229.467931][ T6727] ? __pfx_dump_stack_lvl+0x10/0x10
[ 229.467954][ T6727] ? __pfx__printk+0x10/0x10
[ 229.467981][ T6727] ? __pfx___might_resched+0x10/0x10
[ 229.468008][ T6727] should_fail_ex+0x424/0x570
[ 229.468031][ T6727] should_failslab+0xac/0x100
[ 229.468057][ T6727] kmem_cache_alloc_noprof+0x78/0x390
[ 229.468080][ T6727] ? __kernfs_new_node+0xdf/0x890
[ 229.468104][ T6727] __kernfs_new_node+0xdf/0x890
[ 229.468122][ T6727] ? __lock_acquire+0xad5/0xd80
[ 229.468148][ T6727] ? __pfx___kernfs_new_node+0x10/0x10
[ 229.468175][ T6727] ? kernfs_root+0x1c/0x230
[ 229.468194][ T6727] ? kernfs_root+0x1c/0x230
[ 229.468214][ T6727] kernfs_new_node+0x114/0x220
[ 229.468238][ T6727] kernfs_create_link+0xa5/0x1f0
[ 229.468264][ T6727] sysfs_do_create_link_sd+0x85/0x110
[ 229.468285][ T6727] software_node_notify+0xe1/0x1b0
[ 229.468307][ T6727] device_add+0x513/0xbf0
[ 229.468329][ T6727] ? iommufd_test+0x2efb/0x56a0
[ 229.468350][ T6727] iommufd_test+0x3350/0x56a0
[ 229.468381][ T6727] ? __pfx_iommufd_test+0x10/0x10
[ 229.468411][ T6727] ? __lock_acquire+0xad5/0xd80
[ 229.468461][ T6727] iommufd_fops_ioctl+0x4fc/0x610
[ 229.468488][ T6727] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 229.468515][ T6727] ? __fget_files+0x2a/0x420
[ 229.468537][ T6727] ? __fget_files+0x2a/0x420
[ 229.468557][ T6727] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 229.468582][ T6727] __se_sys_ioctl+0xf1/0x160
[ 229.468605][ T6727] do_syscall_64+0xf3/0x230
[ 229.468628][ T6727] ? clear_bhb_loop+0x45/0xa0
[ 229.468648][ T6727] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 229.468665][ T6727] RIP: 0033:0x7f9b9698d169
[ 229.468680][ T6727] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 229.468694][ T6727] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.468713][ T6727] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 229.468726][ T6727] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 229.468737][ T6727] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 229.468749][ T6727] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 229.468759][ T6727] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 229.468793][ T6727]
[ 229.469536][ T6727] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 229.807133][ T6729] FAULT_INJECTION: forcing a failure.
[ 229.807133][ T6729] name failslab, interval 1, probability 0, space 0, times 0
[ 229.822770][ T6729] CPU: 1 UID: 0 PID: 6729 Comm: syz.0.294 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 229.822794][ T6729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 229.822805][ T6729] Call Trace:
[ 229.822813][ T6729]
[ 229.822820][ T6729] dump_stack_lvl+0x241/0x360
[ 229.822853][ T6729] ? __pfx_dump_stack_lvl+0x10/0x10
[ 229.822877][ T6729] ? __pfx__printk+0x10/0x10
[ 229.822905][ T6729] ? __pfx___might_resched+0x10/0x10
[ 229.822931][ T6729] should_fail_ex+0x424/0x570
[ 229.822955][ T6729] should_failslab+0xac/0x100
[ 229.822980][ T6729] kmem_cache_alloc_noprof+0x78/0x390
[ 229.823010][ T6729] ? __kernfs_new_node+0xdf/0x890
[ 229.823033][ T6729] __kernfs_new_node+0xdf/0x890
[ 229.823051][ T6729] ? __lock_acquire+0xad5/0xd80
[ 229.823076][ T6729] ? __pfx___kernfs_new_node+0x10/0x10
[ 229.823104][ T6729] ? kernfs_root+0x1c/0x230
[ 229.823123][ T6729] ? kernfs_root+0x1c/0x230
[ 229.823143][ T6729] kernfs_new_node+0x114/0x220
[ 229.823166][ T6729] kernfs_create_link+0xa5/0x1f0
[ 229.823192][ T6729] sysfs_do_create_link_sd+0x85/0x110
[ 229.823212][ T6729] software_node_notify+0xe1/0x1b0
[ 229.823234][ T6729] device_add+0x513/0xbf0
[ 229.823255][ T6729] ? iommufd_test+0x2efb/0x56a0
[ 229.823277][ T6729] iommufd_test+0x3350/0x56a0
[ 229.823307][ T6729] ? __pfx_iommufd_test+0x10/0x10
[ 229.823337][ T6729] ? __lock_acquire+0xad5/0xd80
[ 229.823387][ T6729] iommufd_fops_ioctl+0x4fc/0x610
[ 229.823414][ T6729] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 229.823441][ T6729] ? __fget_files+0x2a/0x420
[ 229.823464][ T6729] ? __fget_files+0x2a/0x420
[ 229.823484][ T6729] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 229.823509][ T6729] __se_sys_ioctl+0xf1/0x160
[ 229.823532][ T6729] do_syscall_64+0xf3/0x230
[ 229.823555][ T6729] ? clear_bhb_loop+0x45/0xa0
[ 229.823575][ T6729] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 229.823592][ T6729] RIP: 0033:0x7f9b9698d169
[ 229.823607][ T6729] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 229.823621][ T6729] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.823641][ T6729] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 229.823653][ T6729] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 229.823664][ T6729] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 229.823675][ T6729] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 229.823686][ T6729] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 229.823713][ T6729]
[ 229.824466][ T6729] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 230.150047][ T6731] FAULT_INJECTION: forcing a failure.
[ 230.150047][ T6731] name failslab, interval 1, probability 0, space 0, times 0
[ 230.165622][ T6731] CPU: 0 UID: 0 PID: 6731 Comm: syz.0.295 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 230.165648][ T6731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 230.165659][ T6731] Call Trace:
[ 230.165667][ T6731]
[ 230.165674][ T6731] dump_stack_lvl+0x241/0x360
[ 230.165707][ T6731] ? __pfx_dump_stack_lvl+0x10/0x10
[ 230.165732][ T6731] ? __pfx__printk+0x10/0x10
[ 230.165760][ T6731] ? __pfx___might_resched+0x10/0x10
[ 230.165786][ T6731] should_fail_ex+0x424/0x570
[ 230.165810][ T6731] should_failslab+0xac/0x100
[ 230.165835][ T6731] kmem_cache_alloc_noprof+0x78/0x390
[ 230.165859][ T6731] ? __kernfs_new_node+0xdf/0x890
[ 230.165883][ T6731] __kernfs_new_node+0xdf/0x890
[ 230.165909][ T6731] ? __lock_acquire+0xad5/0xd80
[ 230.165932][ T6731] ? __pfx___kernfs_new_node+0x10/0x10
[ 230.165962][ T6731] ? kernfs_root+0x1c/0x230
[ 230.165980][ T6731] ? kernfs_root+0x1c/0x230
[ 230.166000][ T6731] kernfs_new_node+0x114/0x220
[ 230.166024][ T6731] kernfs_create_dir_ns+0x43/0x120
[ 230.166047][ T6731] sysfs_create_dir_ns+0x1a2/0x3f0
[ 230.166068][ T6731] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 230.166094][ T6731] kobject_add_internal+0x435/0x8d0
[ 230.166126][ T6731] kobject_add+0x15b/0x230
[ 230.166150][ T6731] ? kobject_put+0x43d/0x480
[ 230.166172][ T6731] ? __pfx_kobject_add+0x10/0x10
[ 230.166195][ T6731] ? bus_get_dev_root+0x127/0x160
[ 230.166216][ T6731] ? get_device_parent+0x405/0x410
[ 230.166235][ T6731] ? device_add+0x318/0xbf0
[ 230.166256][ T6731] device_add+0x4e5/0xbf0
[ 230.166277][ T6731] ? iommufd_test+0x2efb/0x56a0
[ 230.166298][ T6731] iommufd_test+0x3350/0x56a0
[ 230.166328][ T6731] ? __pfx_iommufd_test+0x10/0x10
[ 230.166359][ T6731] ? __lock_acquire+0xad5/0xd80
[ 230.166405][ T6731] iommufd_fops_ioctl+0x4fc/0x610
[ 230.166431][ T6731] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 230.166459][ T6731] ? __fget_files+0x2a/0x420
[ 230.166487][ T6731] ? __fget_files+0x2a/0x420
[ 230.166508][ T6731] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 230.166532][ T6731] __se_sys_ioctl+0xf1/0x160
[ 230.166552][ T6731] do_syscall_64+0xf3/0x230
[ 230.166572][ T6731] ? clear_bhb_loop+0x45/0xa0
[ 230.166591][ T6731] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 230.166606][ T6731] RIP: 0033:0x7f9b9698d169
[ 230.166621][ T6731] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 230.166633][ T6731] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 230.166651][ T6731] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 230.166662][ T6731] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 230.166672][ T6731] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 230.166682][ T6731] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 230.166692][ T6731] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 230.166718][ T6731]
[ 230.166740][ T6731] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 230.457854][ T53] unregister_netdevice: waiting for batadv0 to become free. Usage count = 3
[ 230.562653][ T6733] FAULT_INJECTION: forcing a failure.
[ 230.562653][ T6733] name failslab, interval 1, probability 0, space 0, times 0
[ 230.575548][ T6733] CPU: 0 UID: 0 PID: 6733 Comm: syz.0.296 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 230.575573][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 230.575584][ T6733] Call Trace:
[ 230.575591][ T6733]
[ 230.575599][ T6733] dump_stack_lvl+0x241/0x360
[ 230.575639][ T6733] ? __pfx_dump_stack_lvl+0x10/0x10
[ 230.575663][ T6733] ? __pfx__printk+0x10/0x10
[ 230.575692][ T6733] ? __pfx___might_resched+0x10/0x10
[ 230.575717][ T6733] should_fail_ex+0x424/0x570
[ 230.575741][ T6733] should_failslab+0xac/0x100
[ 230.575767][ T6733] kmem_cache_alloc_noprof+0x78/0x390
[ 230.575790][ T6733] ? __kernfs_new_node+0xdf/0x890
[ 230.575814][ T6733] __kernfs_new_node+0xdf/0x890
[ 230.575830][ T6733] ? __lock_acquire+0xad5/0xd80
[ 230.575855][ T6733] ? __pfx___kernfs_new_node+0x10/0x10
[ 230.575881][ T6733] ? kernfs_root+0x1c/0x230
[ 230.575900][ T6733] ? kernfs_root+0x1c/0x230
[ 230.575919][ T6733] kernfs_new_node+0x114/0x220
[ 230.575943][ T6733] kernfs_create_link+0xa5/0x1f0
[ 230.575969][ T6733] sysfs_do_create_link_sd+0x85/0x110
[ 230.575989][ T6733] software_node_notify+0xe1/0x1b0
[ 230.576011][ T6733] device_add+0x513/0xbf0
[ 230.576032][ T6733] ? iommufd_test+0x2efb/0x56a0
[ 230.576054][ T6733] iommufd_test+0x3350/0x56a0
[ 230.576084][ T6733] ? __pfx_iommufd_test+0x10/0x10
[ 230.576114][ T6733] ? __lock_acquire+0xad5/0xd80
[ 230.576163][ T6733] iommufd_fops_ioctl+0x4fc/0x610
[ 230.576190][ T6733] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 230.576218][ T6733] ? __fget_files+0x2a/0x420
[ 230.576239][ T6733] ? __fget_files+0x2a/0x420
[ 230.576259][ T6733] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 230.576284][ T6733] __se_sys_ioctl+0xf1/0x160
[ 230.576306][ T6733] do_syscall_64+0xf3/0x230
[ 230.576328][ T6733] ? clear_bhb_loop+0x45/0xa0
[ 230.576350][ T6733] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 230.576366][ T6733] RIP: 0033:0x7f9b9698d169
[ 230.576382][ T6733] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 230.576395][ T6733] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 230.576414][ T6733] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 230.576427][ T6733] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 230.576439][ T6733] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 230.576450][ T6733] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 230.576460][ T6733] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 230.576486][ T6733]
[ 230.577247][ T6733] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 230.866036][ T6735] FAULT_INJECTION: forcing a failure.
[ 230.866036][ T6735] name failslab, interval 1, probability 0, space 0, times 0
[ 230.882880][ T6735] CPU: 1 UID: 0 PID: 6735 Comm: syz.0.297 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 230.882904][ T6735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 230.882916][ T6735] Call Trace:
[ 230.882923][ T6735]
[ 230.882932][ T6735] dump_stack_lvl+0x241/0x360
[ 230.882965][ T6735] ? __pfx_dump_stack_lvl+0x10/0x10
[ 230.882990][ T6735] ? __pfx__printk+0x10/0x10
[ 230.883017][ T6735] ? __pfx___might_resched+0x10/0x10
[ 230.883044][ T6735] should_fail_ex+0x424/0x570
[ 230.883068][ T6735] should_failslab+0xac/0x100
[ 230.883093][ T6735] kmem_cache_alloc_noprof+0x78/0x390
[ 230.883117][ T6735] ? __kernfs_new_node+0xdf/0x890
[ 230.883140][ T6735] __kernfs_new_node+0xdf/0x890
[ 230.883157][ T6735] ? __lock_acquire+0xad5/0xd80
[ 230.883182][ T6735] ? __pfx___kernfs_new_node+0x10/0x10
[ 230.883210][ T6735] ? kernfs_root+0x1c/0x230
[ 230.883228][ T6735] ? kernfs_root+0x1c/0x230
[ 230.883248][ T6735] kernfs_new_node+0x114/0x220
[ 230.883272][ T6735] kernfs_create_link+0xa5/0x1f0
[ 230.883298][ T6735] sysfs_do_create_link_sd+0x85/0x110
[ 230.883319][ T6735] software_node_notify+0xe1/0x1b0
[ 230.883340][ T6735] device_add+0x513/0xbf0
[ 230.883361][ T6735] ? iommufd_test+0x2efb/0x56a0
[ 230.883382][ T6735] iommufd_test+0x3350/0x56a0
[ 230.883413][ T6735] ? __pfx_iommufd_test+0x10/0x10
[ 230.883443][ T6735] ? __lock_acquire+0xad5/0xd80
[ 230.883494][ T6735] iommufd_fops_ioctl+0x4fc/0x610
[ 230.883520][ T6735] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 230.883548][ T6735] ? __fget_files+0x2a/0x420
[ 230.883569][ T6735] ? __fget_files+0x2a/0x420
[ 230.883588][ T6735] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 230.883612][ T6735] __se_sys_ioctl+0xf1/0x160
[ 230.883635][ T6735] do_syscall_64+0xf3/0x230
[ 230.883657][ T6735] ? clear_bhb_loop+0x45/0xa0
[ 230.883677][ T6735] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 230.883694][ T6735] RIP: 0033:0x7f9b9698d169
[ 230.883709][ T6735] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 230.883723][ T6735] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 230.883744][ T6735] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 230.883758][ T6735] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 230.883769][ T6735] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 230.883780][ T6735] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 230.883790][ T6735] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 230.883818][ T6735]
[ 230.884570][ T6735] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 231.243806][ T6737] FAULT_INJECTION: forcing a failure.
[ 231.243806][ T6737] name failslab, interval 1, probability 0, space 0, times 0
[ 231.256597][ T6737] CPU: 1 UID: 0 PID: 6737 Comm: syz.0.298 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 231.256628][ T6737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 231.256639][ T6737] Call Trace:
[ 231.256646][ T6737]
[ 231.256654][ T6737] dump_stack_lvl+0x241/0x360
[ 231.256686][ T6737] ? __pfx_dump_stack_lvl+0x10/0x10
[ 231.256710][ T6737] ? __pfx__printk+0x10/0x10
[ 231.256738][ T6737] ? __pfx___might_resched+0x10/0x10
[ 231.256764][ T6737] should_fail_ex+0x424/0x570
[ 231.256794][ T6737] should_failslab+0xac/0x100
[ 231.256820][ T6737] kmem_cache_alloc_noprof+0x78/0x390
[ 231.256843][ T6737] ? __kernfs_new_node+0xdf/0x890
[ 231.256866][ T6737] __kernfs_new_node+0xdf/0x890
[ 231.256883][ T6737] ? __lock_acquire+0xad5/0xd80
[ 231.256908][ T6737] ? __pfx___kernfs_new_node+0x10/0x10
[ 231.256935][ T6737] ? kernfs_root+0x1c/0x230
[ 231.256953][ T6737] ? kernfs_root+0x1c/0x230
[ 231.256973][ T6737] kernfs_new_node+0x114/0x220
[ 231.256996][ T6737] kernfs_create_link+0xa5/0x1f0
[ 231.257023][ T6737] sysfs_do_create_link_sd+0x85/0x110
[ 231.257043][ T6737] software_node_notify+0xe1/0x1b0
[ 231.257066][ T6737] device_add+0x513/0xbf0
[ 231.257087][ T6737] ? iommufd_test+0x2efb/0x56a0
[ 231.257108][ T6737] iommufd_test+0x3350/0x56a0
[ 231.257138][ T6737] ? __pfx_iommufd_test+0x10/0x10
[ 231.257167][ T6737] ? __lock_acquire+0xad5/0xd80
[ 231.257217][ T6737] iommufd_fops_ioctl+0x4fc/0x610
[ 231.257244][ T6737] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 231.257271][ T6737] ? __fget_files+0x2a/0x420
[ 231.257293][ T6737] ? __fget_files+0x2a/0x420
[ 231.257313][ T6737] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 231.257339][ T6737] __se_sys_ioctl+0xf1/0x160
[ 231.257361][ T6737] do_syscall_64+0xf3/0x230
[ 231.257383][ T6737] ? clear_bhb_loop+0x45/0xa0
[ 231.257404][ T6737] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 231.257420][ T6737] RIP: 0033:0x7f9b9698d169
[ 231.257435][ T6737] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 231.257450][ T6737] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 231.257468][ T6737] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 231.257481][ T6737] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 231.257492][ T6737] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 231.257503][ T6737] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 231.257513][ T6737] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 231.257540][ T6737]
[ 231.523543][ T6737] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 231.576043][ T6739] FAULT_INJECTION: forcing a failure.
[ 231.576043][ T6739] name failslab, interval 1, probability 0, space 0, times 0
[ 231.590041][ T6739] CPU: 1 UID: 0 PID: 6739 Comm: syz.0.299 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 231.590065][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 231.590076][ T6739] Call Trace:
[ 231.590084][ T6739]
[ 231.590092][ T6739] dump_stack_lvl+0x241/0x360
[ 231.590124][ T6739] ? __pfx_dump_stack_lvl+0x10/0x10
[ 231.590149][ T6739] ? __pfx__printk+0x10/0x10
[ 231.590177][ T6739] ? __pfx___might_resched+0x10/0x10
[ 231.590203][ T6739] should_fail_ex+0x424/0x570
[ 231.590226][ T6739] should_failslab+0xac/0x100
[ 231.590251][ T6739] kmem_cache_alloc_noprof+0x78/0x390
[ 231.590274][ T6739] ? __kernfs_new_node+0xdf/0x890
[ 231.590297][ T6739] __kernfs_new_node+0xdf/0x890
[ 231.590316][ T6739] ? __lock_acquire+0xad5/0xd80
[ 231.590339][ T6739] ? __pfx___kernfs_new_node+0x10/0x10
[ 231.590368][ T6739] ? kernfs_root+0x1c/0x230
[ 231.590386][ T6739] ? kernfs_root+0x1c/0x230
[ 231.590406][ T6739] kernfs_new_node+0x114/0x220
[ 231.590430][ T6739] kernfs_create_dir_ns+0x43/0x120
[ 231.590452][ T6739] sysfs_create_dir_ns+0x1a2/0x3f0
[ 231.590473][ T6739] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 231.590500][ T6739] kobject_add_internal+0x435/0x8d0
[ 231.590538][ T6739] kobject_add+0x15b/0x230
[ 231.590561][ T6739] ? kobject_put+0x43d/0x480
[ 231.590582][ T6739] ? __pfx_kobject_add+0x10/0x10
[ 231.590606][ T6739] ? bus_get_dev_root+0x127/0x160
[ 231.590627][ T6739] ? get_device_parent+0x405/0x410
[ 231.590646][ T6739] ? device_add+0x318/0xbf0
[ 231.590667][ T6739] device_add+0x4e5/0xbf0
[ 231.590688][ T6739] ? iommufd_test+0x2efb/0x56a0
[ 231.590708][ T6739] iommufd_test+0x3350/0x56a0
[ 231.590738][ T6739] ? __pfx_iommufd_test+0x10/0x10
[ 231.590767][ T6739] ? __lock_acquire+0xad5/0xd80
[ 231.590817][ T6739] iommufd_fops_ioctl+0x4fc/0x610
[ 231.590843][ T6739] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 231.590871][ T6739] ? __fget_files+0x2a/0x420
[ 231.590893][ T6739] ? __fget_files+0x2a/0x420
[ 231.590913][ T6739] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 231.590938][ T6739] __se_sys_ioctl+0xf1/0x160
[ 231.590961][ T6739] do_syscall_64+0xf3/0x230
[ 231.590982][ T6739] ? clear_bhb_loop+0x45/0xa0
[ 231.591003][ T6739] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 231.591020][ T6739] RIP: 0033:0x7f9b9698d169
[ 231.591036][ T6739] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 231.591049][ T6739] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 231.591068][ T6739] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 231.591081][ T6739] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 231.591092][ T6739] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 231.591103][ T6739] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 231.591113][ T6739] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 231.591141][ T6739]
[ 231.591166][ T6739] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 231.927129][ T6741] FAULT_INJECTION: forcing a failure.
[ 231.927129][ T6741] name failslab, interval 1, probability 0, space 0, times 0
[ 231.944525][ T6741] CPU: 0 UID: 0 PID: 6741 Comm: syz.0.300 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 231.944552][ T6741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 231.944563][ T6741] Call Trace:
[ 231.944571][ T6741]
[ 231.944579][ T6741] dump_stack_lvl+0x241/0x360
[ 231.944612][ T6741] ? __pfx_dump_stack_lvl+0x10/0x10
[ 231.944636][ T6741] ? __pfx__printk+0x10/0x10
[ 231.944664][ T6741] ? __pfx___might_resched+0x10/0x10
[ 231.944698][ T6741] should_fail_ex+0x424/0x570
[ 231.944721][ T6741] should_failslab+0xac/0x100
[ 231.944747][ T6741] kmem_cache_alloc_noprof+0x78/0x390
[ 231.944771][ T6741] ? __kernfs_new_node+0xdf/0x890
[ 231.944795][ T6741] __kernfs_new_node+0xdf/0x890
[ 231.944813][ T6741] ? __lock_acquire+0xad5/0xd80
[ 231.944838][ T6741] ? __pfx___kernfs_new_node+0x10/0x10
[ 231.944864][ T6741] ? kernfs_root+0x1c/0x230
[ 231.944883][ T6741] ? kernfs_root+0x1c/0x230
[ 231.944903][ T6741] kernfs_new_node+0x114/0x220
[ 231.944928][ T6741] kernfs_create_link+0xa5/0x1f0
[ 231.944954][ T6741] sysfs_do_create_link_sd+0x85/0x110
[ 231.944975][ T6741] software_node_notify+0xe1/0x1b0
[ 231.944997][ T6741] device_add+0x513/0xbf0
[ 231.945019][ T6741] ? iommufd_test+0x2efb/0x56a0
[ 231.945039][ T6741] iommufd_test+0x3350/0x56a0
[ 231.945070][ T6741] ? __pfx_iommufd_test+0x10/0x10
[ 231.945099][ T6741] ? __lock_acquire+0xad5/0xd80
[ 231.945149][ T6741] iommufd_fops_ioctl+0x4fc/0x610
[ 231.945177][ T6741] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 231.945204][ T6741] ? __fget_files+0x2a/0x420
[ 231.945226][ T6741] ? __fget_files+0x2a/0x420
[ 231.945245][ T6741] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 231.945270][ T6741] __se_sys_ioctl+0xf1/0x160
[ 231.945293][ T6741] do_syscall_64+0xf3/0x230
[ 231.945315][ T6741] ? clear_bhb_loop+0x45/0xa0
[ 231.945336][ T6741] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 231.945353][ T6741] RIP: 0033:0x7f9b9698d169
[ 231.945369][ T6741] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 231.945383][ T6741] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 231.945408][ T6741] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 231.945421][ T6741] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 231.945432][ T6741] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 231.945442][ T6741] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 231.945453][ T6741] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 231.945481][ T6741]
[ 231.946224][ T6741] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 232.294472][ T6743] FAULT_INJECTION: forcing a failure.
[ 232.294472][ T6743] name failslab, interval 1, probability 0, space 0, times 0
[ 232.307461][ T6743] CPU: 0 UID: 0 PID: 6743 Comm: syz.0.301 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 232.307484][ T6743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 232.307495][ T6743] Call Trace:
[ 232.307502][ T6743]
[ 232.307510][ T6743] dump_stack_lvl+0x241/0x360
[ 232.307542][ T6743] ? __pfx_dump_stack_lvl+0x10/0x10
[ 232.307567][ T6743] ? __pfx__printk+0x10/0x10
[ 232.307595][ T6743] ? __pfx___might_resched+0x10/0x10
[ 232.307622][ T6743] should_fail_ex+0x424/0x570
[ 232.307650][ T6743] should_failslab+0xac/0x100
[ 232.307673][ T6743] kmem_cache_alloc_noprof+0x78/0x390
[ 232.307695][ T6743] ? __kernfs_new_node+0xdf/0x890
[ 232.307718][ T6743] __kernfs_new_node+0xdf/0x890
[ 232.307742][ T6743] ? __lock_acquire+0xad5/0xd80
[ 232.307765][ T6743] ? __pfx___kernfs_new_node+0x10/0x10
[ 232.307788][ T6743] ? kernfs_root+0x1c/0x230
[ 232.307805][ T6743] ? kernfs_root+0x1c/0x230
[ 232.307824][ T6743] kernfs_new_node+0x114/0x220
[ 232.307847][ T6743] kernfs_create_link+0xa5/0x1f0
[ 232.307873][ T6743] sysfs_do_create_link_sd+0x85/0x110
[ 232.307892][ T6743] software_node_notify+0xe1/0x1b0
[ 232.307912][ T6743] device_add+0x513/0xbf0
[ 232.307932][ T6743] ? iommufd_test+0x2efb/0x56a0
[ 232.307953][ T6743] iommufd_test+0x3350/0x56a0
[ 232.307983][ T6743] ? __pfx_iommufd_test+0x10/0x10
[ 232.308011][ T6743] ? __lock_acquire+0xad5/0xd80
[ 232.308056][ T6743] iommufd_fops_ioctl+0x4fc/0x610
[ 232.308081][ T6743] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 232.308107][ T6743] ? __fget_files+0x2a/0x420
[ 232.308129][ T6743] ? __fget_files+0x2a/0x420
[ 232.308148][ T6743] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 232.308171][ T6743] __se_sys_ioctl+0xf1/0x160
[ 232.308193][ T6743] do_syscall_64+0xf3/0x230
[ 232.308215][ T6743] ? clear_bhb_loop+0x45/0xa0
[ 232.308234][ T6743] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 232.308250][ T6743] RIP: 0033:0x7f9b9698d169
[ 232.308265][ T6743] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 232.308280][ T6743] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 232.308298][ T6743] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 232.308311][ T6743] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 232.308322][ T6743] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
2025/04/10 19:10:27 executed programs: 287
[ 232.308332][ T6743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 232.308342][ T6743] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 232.308374][ T6743]
[ 232.585482][ T6743] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 232.630661][ T6745] FAULT_INJECTION: forcing a failure.
[ 232.630661][ T6745] name failslab, interval 1, probability 0, space 0, times 0
[ 232.646272][ T6745] CPU: 0 UID: 0 PID: 6745 Comm: syz.0.302 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 232.646297][ T6745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 232.646308][ T6745] Call Trace:
[ 232.646315][ T6745]
[ 232.646324][ T6745] dump_stack_lvl+0x241/0x360
[ 232.646355][ T6745] ? __pfx_dump_stack_lvl+0x10/0x10
[ 232.646379][ T6745] ? __pfx__printk+0x10/0x10
[ 232.646407][ T6745] ? __pfx___might_resched+0x10/0x10
[ 232.646441][ T6745] should_fail_ex+0x424/0x570
[ 232.646465][ T6745] should_failslab+0xac/0x100
[ 232.646490][ T6745] kmem_cache_alloc_noprof+0x78/0x390
[ 232.646513][ T6745] ? __kernfs_new_node+0xdf/0x890
[ 232.646536][ T6745] __kernfs_new_node+0xdf/0x890
[ 232.646553][ T6745] ? __lock_acquire+0xad5/0xd80
[ 232.646579][ T6745] ? __pfx___kernfs_new_node+0x10/0x10
[ 232.646606][ T6745] ? kernfs_root+0x1c/0x230
[ 232.646625][ T6745] ? kernfs_root+0x1c/0x230
[ 232.646645][ T6745] kernfs_new_node+0x114/0x220
[ 232.646668][ T6745] kernfs_create_link+0xa5/0x1f0
[ 232.646694][ T6745] sysfs_do_create_link_sd+0x85/0x110
[ 232.646714][ T6745] software_node_notify+0xe1/0x1b0
[ 232.646736][ T6745] device_add+0x513/0xbf0
[ 232.646757][ T6745] ? iommufd_test+0x2efb/0x56a0
[ 232.646778][ T6745] iommufd_test+0x3350/0x56a0
[ 232.646809][ T6745] ? __pfx_iommufd_test+0x10/0x10
[ 232.646838][ T6745] ? __lock_acquire+0xad5/0xd80
[ 232.646887][ T6745] iommufd_fops_ioctl+0x4fc/0x610
[ 232.646914][ T6745] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 232.646941][ T6745] ? __fget_files+0x2a/0x420
[ 232.646962][ T6745] ? __fget_files+0x2a/0x420
[ 232.646982][ T6745] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 232.647006][ T6745] __se_sys_ioctl+0xf1/0x160
[ 232.647029][ T6745] do_syscall_64+0xf3/0x230
[ 232.647052][ T6745] ? clear_bhb_loop+0x45/0xa0
[ 232.647072][ T6745] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 232.647089][ T6745] RIP: 0033:0x7f9b9698d169
[ 232.647105][ T6745] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 232.647119][ T6745] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 232.647139][ T6745] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 232.647152][ T6745] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 232.647164][ T6745] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 232.647175][ T6745] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 232.647186][ T6745] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 232.647213][ T6745]
[ 232.912414][ T6745] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 233.000357][ T6747] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 233.032456][ T6749] FAULT_INJECTION: forcing a failure.
[ 233.032456][ T6749] name failslab, interval 1, probability 0, space 0, times 0
[ 233.048249][ T6749] CPU: 0 UID: 0 PID: 6749 Comm: syz.0.304 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 233.048275][ T6749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 233.048286][ T6749] Call Trace:
[ 233.048293][ T6749]
[ 233.048301][ T6749] dump_stack_lvl+0x241/0x360
[ 233.048333][ T6749] ? __pfx_dump_stack_lvl+0x10/0x10
[ 233.048358][ T6749] ? __pfx__printk+0x10/0x10
[ 233.048384][ T6749] ? __pfx___might_resched+0x10/0x10
[ 233.048440][ T6749] should_fail_ex+0x424/0x570
[ 233.048462][ T6749] should_failslab+0xac/0x100
[ 233.048487][ T6749] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 233.048513][ T6749] ? __kernfs_new_node+0xa2/0x890
[ 233.048530][ T6749] ? kernel_text_address+0xa7/0xe0
[ 233.048551][ T6749] kstrdup+0x42/0x100
[ 233.048574][ T6749] __kernfs_new_node+0xa2/0x890
[ 233.048593][ T6749] ? __lock_acquire+0xad5/0xd80
[ 233.048616][ T6749] ? __pfx___kernfs_new_node+0x10/0x10
[ 233.048644][ T6749] ? kernfs_root+0x1c/0x230
[ 233.048660][ T6749] ? kernfs_root+0x1c/0x230
[ 233.048676][ T6749] kernfs_new_node+0x114/0x220
[ 233.048697][ T6749] kernfs_create_dir_ns+0x43/0x120
[ 233.048721][ T6749] sysfs_create_dir_ns+0x1a2/0x3f0
[ 233.048742][ T6749] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 233.048768][ T6749] kobject_add_internal+0x435/0x8d0
[ 233.048799][ T6749] kobject_add+0x15b/0x230
[ 233.048823][ T6749] ? kobject_put+0x43d/0x480
[ 233.048843][ T6749] ? __pfx_kobject_add+0x10/0x10
[ 233.048866][ T6749] ? bus_get_dev_root+0x127/0x160
[ 233.048886][ T6749] ? get_device_parent+0x405/0x410
[ 233.048903][ T6749] ? device_add+0x318/0xbf0
[ 233.048924][ T6749] device_add+0x4e5/0xbf0
[ 233.048946][ T6749] ? iommufd_test+0x2efb/0x56a0
[ 233.048966][ T6749] iommufd_test+0x3350/0x56a0
[ 233.048997][ T6749] ? __pfx_iommufd_test+0x10/0x10
[ 233.049032][ T6749] ? __lock_acquire+0xad5/0xd80
[ 233.049081][ T6749] iommufd_fops_ioctl+0x4fc/0x610
[ 233.049108][ T6749] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 233.049136][ T6749] ? __fget_files+0x2a/0x420
[ 233.049158][ T6749] ? __fget_files+0x2a/0x420
[ 233.049178][ T6749] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 233.049203][ T6749] __se_sys_ioctl+0xf1/0x160
[ 233.049225][ T6749] do_syscall_64+0xf3/0x230
[ 233.049247][ T6749] ? clear_bhb_loop+0x45/0xa0
[ 233.049267][ T6749] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 233.049284][ T6749] RIP: 0033:0x7f9b9698d169
[ 233.049300][ T6749] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 233.049315][ T6749] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 233.049334][ T6749] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 233.049347][ T6749] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 233.049358][ T6749] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 233.049368][ T6749] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 233.049379][ T6749] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 233.049414][ T6749]
[ 233.049425][ T6749] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 233.393681][ T6751] FAULT_INJECTION: forcing a failure.
[ 233.393681][ T6751] name failslab, interval 1, probability 0, space 0, times 0
[ 233.406524][ T6751] CPU: 0 UID: 0 PID: 6751 Comm: syz.0.305 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 233.406547][ T6751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 233.406559][ T6751] Call Trace:
[ 233.406566][ T6751]
[ 233.406580][ T6751] dump_stack_lvl+0x241/0x360
[ 233.406611][ T6751] ? __pfx_dump_stack_lvl+0x10/0x10
[ 233.406636][ T6751] ? __pfx__printk+0x10/0x10
[ 233.406663][ T6751] ? __pfx___might_resched+0x10/0x10
[ 233.406689][ T6751] should_fail_ex+0x424/0x570
[ 233.406713][ T6751] should_failslab+0xac/0x100
[ 233.406738][ T6751] kmem_cache_alloc_noprof+0x78/0x390
[ 233.406762][ T6751] ? __kernfs_new_node+0xdf/0x890
[ 233.406785][ T6751] __kernfs_new_node+0xdf/0x890
[ 233.406805][ T6751] ? __lock_acquire+0xad5/0xd80
[ 233.406828][ T6751] ? __pfx___kernfs_new_node+0x10/0x10
[ 233.406857][ T6751] ? kernfs_root+0x1c/0x230
[ 233.406876][ T6751] ? kernfs_root+0x1c/0x230
[ 233.406896][ T6751] kernfs_new_node+0x114/0x220
[ 233.406918][ T6751] kernfs_create_dir_ns+0x43/0x120
[ 233.406941][ T6751] sysfs_create_dir_ns+0x1a2/0x3f0
[ 233.406962][ T6751] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 233.406989][ T6751] kobject_add_internal+0x435/0x8d0
[ 233.407020][ T6751] kobject_add+0x15b/0x230
[ 233.407045][ T6751] ? kobject_put+0x43d/0x480
[ 233.407066][ T6751] ? __pfx_kobject_add+0x10/0x10
[ 233.407090][ T6751] ? bus_get_dev_root+0x127/0x160
[ 233.407111][ T6751] ? get_device_parent+0x405/0x410
[ 233.407130][ T6751] ? device_add+0x318/0xbf0
[ 233.407152][ T6751] device_add+0x4e5/0xbf0
[ 233.407173][ T6751] ? iommufd_test+0x2efb/0x56a0
[ 233.407194][ T6751] iommufd_test+0x3350/0x56a0
[ 233.407224][ T6751] ? __pfx_iommufd_test+0x10/0x10
[ 233.407253][ T6751] ? __lock_acquire+0xad5/0xd80
[ 233.407303][ T6751] iommufd_fops_ioctl+0x4fc/0x610
[ 233.407329][ T6751] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 233.407356][ T6751] ? __fget_files+0x2a/0x420
[ 233.407378][ T6751] ? __fget_files+0x2a/0x420
[ 233.407398][ T6751] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 233.407424][ T6751] __se_sys_ioctl+0xf1/0x160
[ 233.407447][ T6751] do_syscall_64+0xf3/0x230
[ 233.407468][ T6751] ? clear_bhb_loop+0x45/0xa0
[ 233.407489][ T6751] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 233.407506][ T6751] RIP: 0033:0x7f9b9698d169
[ 233.407522][ T6751] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 233.407537][ T6751] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 233.407556][ T6751] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 233.407575][ T6751] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 233.407586][ T6751] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 233.407598][ T6751] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 233.407607][ T6751] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 233.407635][ T6751]
[ 233.703320][ T6751] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 233.791241][ T6753] FAULT_INJECTION: forcing a failure.
[ 233.791241][ T6753] name failslab, interval 1, probability 0, space 0, times 0
[ 233.806893][ T6753] CPU: 1 UID: 0 PID: 6753 Comm: syz.0.306 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 233.806920][ T6753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 233.806931][ T6753] Call Trace:
[ 233.806938][ T6753]
[ 233.806946][ T6753] dump_stack_lvl+0x241/0x360
[ 233.806978][ T6753] ? __pfx_dump_stack_lvl+0x10/0x10
[ 233.807002][ T6753] ? __pfx__printk+0x10/0x10
[ 233.807029][ T6753] ? __pfx___might_resched+0x10/0x10
[ 233.807054][ T6753] should_fail_ex+0x424/0x570
[ 233.807075][ T6753] should_failslab+0xac/0x100
[ 233.807097][ T6753] kmem_cache_alloc_noprof+0x78/0x390
[ 233.807120][ T6753] ? __kernfs_new_node+0xdf/0x890
[ 233.807140][ T6753] __kernfs_new_node+0xdf/0x890
[ 233.807157][ T6753] ? __lock_acquire+0xad5/0xd80
[ 233.807179][ T6753] ? __pfx___kernfs_new_node+0x10/0x10
[ 233.807203][ T6753] ? kernfs_root+0x1c/0x230
[ 233.807220][ T6753] ? kernfs_root+0x1c/0x230
[ 233.807240][ T6753] kernfs_new_node+0x114/0x220
[ 233.807262][ T6753] kernfs_create_link+0xa5/0x1f0
[ 233.807287][ T6753] sysfs_do_create_link_sd+0x85/0x110
[ 233.807307][ T6753] software_node_notify+0xe1/0x1b0
[ 233.807334][ T6753] device_add+0x513/0xbf0
[ 233.807355][ T6753] ? iommufd_test+0x2efb/0x56a0
[ 233.807375][ T6753] iommufd_test+0x3350/0x56a0
[ 233.807403][ T6753] ? __pfx_iommufd_test+0x10/0x10
[ 233.807433][ T6753] ? __lock_acquire+0xad5/0xd80
[ 233.807483][ T6753] iommufd_fops_ioctl+0x4fc/0x610
[ 233.807509][ T6753] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 233.807537][ T6753] ? __fget_files+0x2a/0x420
[ 233.807559][ T6753] ? __fget_files+0x2a/0x420
[ 233.807579][ T6753] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 233.807604][ T6753] __se_sys_ioctl+0xf1/0x160
[ 233.807626][ T6753] do_syscall_64+0xf3/0x230
[ 233.807651][ T6753] ? clear_bhb_loop+0x45/0xa0
[ 233.807669][ T6753] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 233.807684][ T6753] RIP: 0033:0x7f9b9698d169
[ 233.807700][ T6753] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 233.807714][ T6753] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 233.807732][ T6753] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 233.807743][ T6753] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 233.807753][ T6753] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 233.807764][ T6753] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 233.807773][ T6753] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 233.807802][ T6753]
[ 234.081102][ T6753] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 234.155142][ T6755] FAULT_INJECTION: forcing a failure.
[ 234.155142][ T6755] name failslab, interval 1, probability 0, space 0, times 0
[ 234.170744][ T6755] CPU: 0 UID: 0 PID: 6755 Comm: syz.0.307 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 234.170771][ T6755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 234.170782][ T6755] Call Trace:
[ 234.170790][ T6755]
[ 234.170798][ T6755] dump_stack_lvl+0x241/0x360
[ 234.170830][ T6755] ? __pfx_dump_stack_lvl+0x10/0x10
[ 234.170854][ T6755] ? __pfx__printk+0x10/0x10
[ 234.170880][ T6755] ? __pfx___might_resched+0x10/0x10
[ 234.170907][ T6755] should_fail_ex+0x424/0x570
[ 234.170930][ T6755] should_failslab+0xac/0x100
[ 234.170955][ T6755] kmem_cache_alloc_noprof+0x78/0x390
[ 234.170978][ T6755] ? __kernfs_new_node+0xdf/0x890
[ 234.171002][ T6755] __kernfs_new_node+0xdf/0x890
[ 234.171020][ T6755] ? __lock_acquire+0xad5/0xd80
[ 234.171045][ T6755] ? __pfx___kernfs_new_node+0x10/0x10
[ 234.171072][ T6755] ? kernfs_root+0x1c/0x230
[ 234.171090][ T6755] ? kernfs_root+0x1c/0x230
[ 234.171110][ T6755] kernfs_new_node+0x114/0x220
[ 234.171134][ T6755] kernfs_create_link+0xa5/0x1f0
[ 234.171160][ T6755] sysfs_do_create_link_sd+0x85/0x110
[ 234.171181][ T6755] software_node_notify+0xe1/0x1b0
[ 234.171202][ T6755] device_add+0x513/0xbf0
[ 234.171224][ T6755] ? iommufd_test+0x2efb/0x56a0
[ 234.171245][ T6755] iommufd_test+0x3350/0x56a0
[ 234.171275][ T6755] ? __pfx_iommufd_test+0x10/0x10
[ 234.171312][ T6755] ? __lock_acquire+0xad5/0xd80
[ 234.171361][ T6755] iommufd_fops_ioctl+0x4fc/0x610
[ 234.171387][ T6755] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 234.171414][ T6755] ? __fget_files+0x2a/0x420
[ 234.171436][ T6755] ? __fget_files+0x2a/0x420
[ 234.171457][ T6755] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 234.171481][ T6755] __se_sys_ioctl+0xf1/0x160
[ 234.171504][ T6755] do_syscall_64+0xf3/0x230
[ 234.171526][ T6755] ? clear_bhb_loop+0x45/0xa0
[ 234.171547][ T6755] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 234.171564][ T6755] RIP: 0033:0x7f9b9698d169
[ 234.171580][ T6755] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 234.171595][ T6755] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 234.171614][ T6755] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 234.171627][ T6755] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 234.171638][ T6755] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 234.171649][ T6755] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 234.171659][ T6755] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 234.171686][ T6755]
[ 234.172443][ T6755] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 234.480696][ T6757] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 234.535123][ T6759] FAULT_INJECTION: forcing a failure.
[ 234.535123][ T6759] name failslab, interval 1, probability 0, space 0, times 0
[ 234.550840][ T6759] CPU: 0 UID: 0 PID: 6759 Comm: syz.0.309 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 234.550866][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 234.550877][ T6759] Call Trace:
[ 234.550884][ T6759]
[ 234.550892][ T6759] dump_stack_lvl+0x241/0x360
[ 234.550924][ T6759] ? __pfx_dump_stack_lvl+0x10/0x10
[ 234.550948][ T6759] ? __pfx__printk+0x10/0x10
[ 234.550976][ T6759] ? __pfx___might_resched+0x10/0x10
[ 234.551001][ T6759] should_fail_ex+0x424/0x570
[ 234.551025][ T6759] should_failslab+0xac/0x100
[ 234.551050][ T6759] kmem_cache_alloc_noprof+0x78/0x390
[ 234.551074][ T6759] ? __kernfs_new_node+0xdf/0x890
[ 234.551097][ T6759] __kernfs_new_node+0xdf/0x890
[ 234.551117][ T6759] ? __lock_acquire+0xad5/0xd80
[ 234.551140][ T6759] ? __pfx___kernfs_new_node+0x10/0x10
[ 234.551169][ T6759] ? kernfs_root+0x1c/0x230
[ 234.551188][ T6759] ? kernfs_root+0x1c/0x230
[ 234.551206][ T6759] kernfs_new_node+0x114/0x220
[ 234.551230][ T6759] kernfs_create_dir_ns+0x43/0x120
[ 234.551253][ T6759] sysfs_create_dir_ns+0x1a2/0x3f0
[ 234.551274][ T6759] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 234.551301][ T6759] kobject_add_internal+0x435/0x8d0
[ 234.551331][ T6759] kobject_add+0x15b/0x230
[ 234.551356][ T6759] ? kobject_put+0x43d/0x480
[ 234.551377][ T6759] ? __pfx_kobject_add+0x10/0x10
[ 234.551400][ T6759] ? bus_get_dev_root+0x127/0x160
[ 234.551421][ T6759] ? get_device_parent+0x405/0x410
[ 234.551438][ T6759] ? device_add+0x318/0xbf0
[ 234.551461][ T6759] device_add+0x4e5/0xbf0
[ 234.551477][ T6759] ? iommufd_test+0x2efb/0x56a0
[ 234.551499][ T6759] iommufd_test+0x3350/0x56a0
[ 234.551529][ T6759] ? __pfx_iommufd_test+0x10/0x10
[ 234.551559][ T6759] ? __lock_acquire+0xad5/0xd80
[ 234.551609][ T6759] iommufd_fops_ioctl+0x4fc/0x610
[ 234.551636][ T6759] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 234.551664][ T6759] ? __fget_files+0x2a/0x420
[ 234.551686][ T6759] ? __fget_files+0x2a/0x420
[ 234.551706][ T6759] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 234.551732][ T6759] __se_sys_ioctl+0xf1/0x160
[ 234.551754][ T6759] do_syscall_64+0xf3/0x230
[ 234.551775][ T6759] ? clear_bhb_loop+0x45/0xa0
[ 234.551796][ T6759] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 234.551813][ T6759] RIP: 0033:0x7f9b9698d169
[ 234.551829][ T6759] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 234.551844][ T6759] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 234.551864][ T6759] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 234.551876][ T6759] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 234.551887][ T6759] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 234.551899][ T6759] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 234.551909][ T6759] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 234.551936][ T6759]
[ 234.551963][ T6759] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 234.902042][ T6761] FAULT_INJECTION: forcing a failure.
[ 234.902042][ T6761] name failslab, interval 1, probability 0, space 0, times 0
[ 234.920789][ T6761] CPU: 0 UID: 0 PID: 6761 Comm: syz.0.310 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 234.920817][ T6761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 234.920827][ T6761] Call Trace:
[ 234.920835][ T6761]
[ 234.920843][ T6761] dump_stack_lvl+0x241/0x360
[ 234.920875][ T6761] ? __pfx_dump_stack_lvl+0x10/0x10
[ 234.920899][ T6761] ? __pfx__printk+0x10/0x10
[ 234.920927][ T6761] ? __pfx___might_resched+0x10/0x10
[ 234.920953][ T6761] should_fail_ex+0x424/0x570
[ 234.920977][ T6761] should_failslab+0xac/0x100
[ 234.921002][ T6761] kmem_cache_alloc_noprof+0x78/0x390
[ 234.921025][ T6761] ? __kernfs_new_node+0xdf/0x890
[ 234.921049][ T6761] __kernfs_new_node+0xdf/0x890
[ 234.921067][ T6761] ? __lock_acquire+0xad5/0xd80
[ 234.921092][ T6761] ? __pfx___kernfs_new_node+0x10/0x10
[ 234.921119][ T6761] ? kernfs_root+0x1c/0x230
[ 234.921138][ T6761] ? kernfs_root+0x1c/0x230
[ 234.921157][ T6761] kernfs_new_node+0x114/0x220
[ 234.921180][ T6761] kernfs_create_link+0xa5/0x1f0
[ 234.921206][ T6761] sysfs_do_create_link_sd+0x85/0x110
[ 234.921226][ T6761] software_node_notify+0xe1/0x1b0
[ 234.921248][ T6761] device_add+0x513/0xbf0
[ 234.921269][ T6761] ? iommufd_test+0x2efb/0x56a0
[ 234.921290][ T6761] iommufd_test+0x3350/0x56a0
[ 234.921320][ T6761] ? __pfx_iommufd_test+0x10/0x10
[ 234.921350][ T6761] ? __lock_acquire+0xad5/0xd80
[ 234.921400][ T6761] iommufd_fops_ioctl+0x4fc/0x610
[ 234.921434][ T6761] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 234.921462][ T6761] ? __fget_files+0x2a/0x420
[ 234.921484][ T6761] ? __fget_files+0x2a/0x420
[ 234.921504][ T6761] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 234.921529][ T6761] __se_sys_ioctl+0xf1/0x160
[ 234.921552][ T6761] do_syscall_64+0xf3/0x230
[ 234.921574][ T6761] ? clear_bhb_loop+0x45/0xa0
[ 234.921595][ T6761] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 234.921612][ T6761] RIP: 0033:0x7f9b9698d169
[ 234.921628][ T6761] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 234.921642][ T6761] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 234.921662][ T6761] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 234.921674][ T6761] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 234.921685][ T6761] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 234.921696][ T6761] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 234.921706][ T6761] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 234.921734][ T6761]
[ 234.922472][ T6761] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 235.241338][ T6763] FAULT_INJECTION: forcing a failure.
[ 235.241338][ T6763] name failslab, interval 1, probability 0, space 0, times 0
[ 235.261978][ T6763] CPU: 1 UID: 0 PID: 6763 Comm: syz.0.311 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 235.262005][ T6763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 235.262016][ T6763] Call Trace:
[ 235.262023][ T6763]
[ 235.262032][ T6763] dump_stack_lvl+0x241/0x360
[ 235.262063][ T6763] ? __pfx_dump_stack_lvl+0x10/0x10
[ 235.262087][ T6763] ? __pfx__printk+0x10/0x10
[ 235.262115][ T6763] ? __pfx___might_resched+0x10/0x10
[ 235.262140][ T6763] should_fail_ex+0x424/0x570
[ 235.262174][ T6763] should_failslab+0xac/0x100
[ 235.262199][ T6763] kmem_cache_alloc_noprof+0x78/0x390
[ 235.262222][ T6763] ? __kernfs_new_node+0xdf/0x890
[ 235.262245][ T6763] __kernfs_new_node+0xdf/0x890
[ 235.262263][ T6763] ? __lock_acquire+0xad5/0xd80
[ 235.262287][ T6763] ? __pfx___kernfs_new_node+0x10/0x10
[ 235.262314][ T6763] ? kernfs_root+0x1c/0x230
[ 235.262332][ T6763] ? kernfs_root+0x1c/0x230
[ 235.262352][ T6763] kernfs_new_node+0x114/0x220
[ 235.262376][ T6763] kernfs_create_link+0xa5/0x1f0
[ 235.262402][ T6763] sysfs_do_create_link_sd+0x85/0x110
[ 235.262422][ T6763] software_node_notify+0xe1/0x1b0
[ 235.262443][ T6763] device_add+0x513/0xbf0
[ 235.262465][ T6763] ? iommufd_test+0x2efb/0x56a0
[ 235.262486][ T6763] iommufd_test+0x3350/0x56a0
[ 235.262516][ T6763] ? __pfx_iommufd_test+0x10/0x10
[ 235.262546][ T6763] ? __lock_acquire+0xad5/0xd80
[ 235.262595][ T6763] iommufd_fops_ioctl+0x4fc/0x610
[ 235.262622][ T6763] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 235.262649][ T6763] ? __fget_files+0x2a/0x420
[ 235.262671][ T6763] ? __fget_files+0x2a/0x420
[ 235.262691][ T6763] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 235.262716][ T6763] __se_sys_ioctl+0xf1/0x160
[ 235.262739][ T6763] do_syscall_64+0xf3/0x230
[ 235.262761][ T6763] ? clear_bhb_loop+0x45/0xa0
[ 235.262781][ T6763] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 235.262799][ T6763] RIP: 0033:0x7f9b9698d169
[ 235.262814][ T6763] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 235.262829][ T6763] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 235.262848][ T6763] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 235.262861][ T6763] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 235.262872][ T6763] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 235.262883][ T6763] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 235.262893][ T6763] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 235.262921][ T6763]
[ 235.263707][ T6763] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 235.579663][ T6765] FAULT_INJECTION: forcing a failure.
[ 235.579663][ T6765] name failslab, interval 1, probability 0, space 0, times 0
[ 235.627315][ T6765] CPU: 0 UID: 0 PID: 6765 Comm: syz.0.312 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 235.627343][ T6765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 235.627354][ T6765] Call Trace:
[ 235.627361][ T6765]
[ 235.627370][ T6765] dump_stack_lvl+0x241/0x360
[ 235.627402][ T6765] ? __pfx_dump_stack_lvl+0x10/0x10
[ 235.627426][ T6765] ? __pfx__printk+0x10/0x10
[ 235.627453][ T6765] ? __pfx___might_resched+0x10/0x10
[ 235.627480][ T6765] should_fail_ex+0x424/0x570
[ 235.627504][ T6765] should_failslab+0xac/0x100
[ 235.627530][ T6765] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 235.627557][ T6765] ? __kernfs_new_node+0xa2/0x890
[ 235.627574][ T6765] ? kernel_text_address+0xa7/0xe0
[ 235.627595][ T6765] kstrdup+0x42/0x100
[ 235.627619][ T6765] __kernfs_new_node+0xa2/0x890
[ 235.627639][ T6765] ? __lock_acquire+0xad5/0xd80
[ 235.627663][ T6765] ? __pfx___kernfs_new_node+0x10/0x10
[ 235.627689][ T6765] ? kernfs_root+0x1c/0x230
[ 235.627706][ T6765] ? kernfs_root+0x1c/0x230
[ 235.627726][ T6765] kernfs_new_node+0x114/0x220
[ 235.627749][ T6765] kernfs_create_dir_ns+0x43/0x120
[ 235.627772][ T6765] sysfs_create_dir_ns+0x1a2/0x3f0
[ 235.627794][ T6765] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 235.627820][ T6765] kobject_add_internal+0x435/0x8d0
[ 235.627852][ T6765] kobject_add+0x15b/0x230
[ 235.627877][ T6765] ? kobject_put+0x43d/0x480
[ 235.627898][ T6765] ? __pfx_kobject_add+0x10/0x10
[ 235.627922][ T6765] ? bus_get_dev_root+0x127/0x160
[ 235.627943][ T6765] ? get_device_parent+0x405/0x410
[ 235.627961][ T6765] ? device_add+0x318/0xbf0
[ 235.627983][ T6765] device_add+0x4e5/0xbf0
[ 235.628004][ T6765] ? iommufd_test+0x2efb/0x56a0
[ 235.628025][ T6765] iommufd_test+0x3350/0x56a0
[ 235.628056][ T6765] ? __pfx_iommufd_test+0x10/0x10
[ 235.628092][ T6765] ? __lock_acquire+0xad5/0xd80
[ 235.628142][ T6765] iommufd_fops_ioctl+0x4fc/0x610
[ 235.628169][ T6765] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 235.628196][ T6765] ? __fget_files+0x2a/0x420
[ 235.628218][ T6765] ? __fget_files+0x2a/0x420
[ 235.628238][ T6765] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 235.628263][ T6765] __se_sys_ioctl+0xf1/0x160
[ 235.628286][ T6765] do_syscall_64+0xf3/0x230
[ 235.628307][ T6765] ? clear_bhb_loop+0x45/0xa0
[ 235.628327][ T6765] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 235.628343][ T6765] RIP: 0033:0x7f9b9698d169
[ 235.628360][ T6765] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 235.628373][ T6765] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 235.628393][ T6765] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 235.628406][ T6765] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 235.628417][ T6765] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 235.628427][ T6765] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 235.628438][ T6765] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 235.628466][ T6765]
[ 235.940598][ T6765] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 236.002901][ T6767] FAULT_INJECTION: forcing a failure.
[ 236.002901][ T6767] name failslab, interval 1, probability 0, space 0, times 0
[ 236.015773][ T6767] CPU: 1 UID: 0 PID: 6767 Comm: syz.0.313 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 236.015799][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 236.015810][ T6767] Call Trace:
[ 236.015818][ T6767]
[ 236.015825][ T6767] dump_stack_lvl+0x241/0x360
[ 236.015858][ T6767] ? __pfx_dump_stack_lvl+0x10/0x10
[ 236.015883][ T6767] ? __pfx__printk+0x10/0x10
[ 236.015910][ T6767] ? __pfx___might_resched+0x10/0x10
[ 236.015936][ T6767] should_fail_ex+0x424/0x570
[ 236.015959][ T6767] should_failslab+0xac/0x100
[ 236.015985][ T6767] kmem_cache_alloc_noprof+0x78/0x390
[ 236.016008][ T6767] ? __kernfs_new_node+0xdf/0x890
[ 236.016032][ T6767] __kernfs_new_node+0xdf/0x890
[ 236.016069][ T6767] ? __lock_acquire+0xad5/0xd80
[ 236.016092][ T6767] ? __pfx___kernfs_new_node+0x10/0x10
[ 236.016126][ T6767] ? kernfs_root+0x1c/0x230
[ 236.016145][ T6767] ? kernfs_root+0x1c/0x230
[ 236.016165][ T6767] kernfs_new_node+0x114/0x220
[ 236.016189][ T6767] kernfs_create_dir_ns+0x43/0x120
[ 236.016212][ T6767] sysfs_create_dir_ns+0x1a2/0x3f0
[ 236.016233][ T6767] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 236.016260][ T6767] kobject_add_internal+0x435/0x8d0
[ 236.016292][ T6767] kobject_add+0x15b/0x230
[ 236.016316][ T6767] ? kobject_put+0x43d/0x480
[ 236.016336][ T6767] ? __pfx_kobject_add+0x10/0x10
[ 236.016360][ T6767] ? bus_get_dev_root+0x127/0x160
[ 236.016388][ T6767] ? get_device_parent+0x405/0x410
[ 236.016407][ T6767] ? device_add+0x318/0xbf0
[ 236.016428][ T6767] device_add+0x4e5/0xbf0
[ 236.016450][ T6767] ? iommufd_test+0x2efb/0x56a0
[ 236.016470][ T6767] iommufd_test+0x3350/0x56a0
[ 236.016501][ T6767] ? __pfx_iommufd_test+0x10/0x10
[ 236.016531][ T6767] ? __lock_acquire+0xad5/0xd80
[ 236.016581][ T6767] iommufd_fops_ioctl+0x4fc/0x610
[ 236.016607][ T6767] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 236.016635][ T6767] ? __fget_files+0x2a/0x420
[ 236.016658][ T6767] ? __fget_files+0x2a/0x420
[ 236.016678][ T6767] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 236.016703][ T6767] __se_sys_ioctl+0xf1/0x160
[ 236.016726][ T6767] do_syscall_64+0xf3/0x230
[ 236.016747][ T6767] ? clear_bhb_loop+0x45/0xa0
[ 236.016767][ T6767] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 236.016783][ T6767] RIP: 0033:0x7f9b9698d169
[ 236.016799][ T6767] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 236.016813][ T6767] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 236.016832][ T6767] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 236.016844][ T6767] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 236.016855][ T6767] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 236.016866][ T6767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 236.016876][ T6767] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 236.016903][ T6767]
[ 236.016929][ T6767] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 236.400697][ T6769] FAULT_INJECTION: forcing a failure.
[ 236.400697][ T6769] name failslab, interval 1, probability 0, space 0, times 0
[ 236.413597][ T6769] CPU: 0 UID: 0 PID: 6769 Comm: syz.0.314 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 236.413621][ T6769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 236.413632][ T6769] Call Trace:
[ 236.413640][ T6769]
[ 236.413648][ T6769] dump_stack_lvl+0x241/0x360
[ 236.413679][ T6769] ? __pfx_dump_stack_lvl+0x10/0x10
[ 236.413703][ T6769] ? __pfx__printk+0x10/0x10
[ 236.413731][ T6769] ? __pfx___might_resched+0x10/0x10
[ 236.413757][ T6769] should_fail_ex+0x424/0x570
[ 236.413780][ T6769] should_failslab+0xac/0x100
[ 236.413806][ T6769] kmem_cache_alloc_noprof+0x78/0x390
[ 236.413829][ T6769] ? __kernfs_new_node+0xdf/0x890
[ 236.413853][ T6769] __kernfs_new_node+0xdf/0x890
[ 236.413873][ T6769] ? __lock_acquire+0xad5/0xd80
[ 236.413896][ T6769] ? __pfx___kernfs_new_node+0x10/0x10
[ 236.413926][ T6769] ? kernfs_root+0x1c/0x230
[ 236.413944][ T6769] ? kernfs_root+0x1c/0x230
[ 236.413964][ T6769] kernfs_new_node+0x114/0x220
[ 236.413988][ T6769] kernfs_create_dir_ns+0x43/0x120
[ 236.414011][ T6769] sysfs_create_dir_ns+0x1a2/0x3f0
[ 236.414031][ T6769] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 236.414066][ T6769] kobject_add_internal+0x435/0x8d0
[ 236.414098][ T6769] kobject_add+0x15b/0x230
[ 236.414123][ T6769] ? kobject_put+0x43d/0x480
[ 236.414144][ T6769] ? __pfx_kobject_add+0x10/0x10
[ 236.414167][ T6769] ? bus_get_dev_root+0x127/0x160
[ 236.414189][ T6769] ? get_device_parent+0x405/0x410
[ 236.414207][ T6769] ? device_add+0x318/0xbf0
[ 236.414228][ T6769] device_add+0x4e5/0xbf0
[ 236.414249][ T6769] ? iommufd_test+0x2efb/0x56a0
[ 236.414270][ T6769] iommufd_test+0x3350/0x56a0
[ 236.414300][ T6769] ? __pfx_iommufd_test+0x10/0x10
[ 236.414329][ T6769] ? __lock_acquire+0xad5/0xd80
[ 236.414379][ T6769] iommufd_fops_ioctl+0x4fc/0x610
[ 236.414406][ T6769] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 236.414434][ T6769] ? __fget_files+0x2a/0x420
[ 236.414456][ T6769] ? __fget_files+0x2a/0x420
[ 236.414476][ T6769] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 236.414501][ T6769] __se_sys_ioctl+0xf1/0x160
[ 236.414524][ T6769] do_syscall_64+0xf3/0x230
[ 236.414546][ T6769] ? clear_bhb_loop+0x45/0xa0
[ 236.414566][ T6769] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 236.414582][ T6769] RIP: 0033:0x7f9b9698d169
[ 236.414598][ T6769] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 236.414613][ T6769] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 236.414632][ T6769] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 236.414644][ T6769] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 236.414655][ T6769] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 236.414665][ T6769] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 236.414675][ T6769] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 236.414703][ T6769]
[ 236.414729][ T6769] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 236.754071][ T6771] FAULT_INJECTION: forcing a failure.
[ 236.754071][ T6771] name failslab, interval 1, probability 0, space 0, times 0
[ 236.811427][ T6771] CPU: 1 UID: 0 PID: 6771 Comm: syz.0.315 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 236.811454][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 236.811465][ T6771] Call Trace:
[ 236.811473][ T6771]
[ 236.811482][ T6771] dump_stack_lvl+0x241/0x360
[ 236.811514][ T6771] ? __pfx_dump_stack_lvl+0x10/0x10
[ 236.811539][ T6771] ? __pfx__printk+0x10/0x10
[ 236.811567][ T6771] ? __pfx___might_resched+0x10/0x10
[ 236.811594][ T6771] should_fail_ex+0x424/0x570
[ 236.811618][ T6771] should_failslab+0xac/0x100
[ 236.811643][ T6771] kmem_cache_alloc_noprof+0x78/0x390
[ 236.811667][ T6771] ? __kernfs_new_node+0xdf/0x890
[ 236.811690][ T6771] __kernfs_new_node+0xdf/0x890
[ 236.811708][ T6771] ? __lock_acquire+0xad5/0xd80
[ 236.811733][ T6771] ? __pfx___kernfs_new_node+0x10/0x10
[ 236.811761][ T6771] ? kernfs_root+0x1c/0x230
[ 236.811780][ T6771] ? kernfs_root+0x1c/0x230
[ 236.811799][ T6771] kernfs_new_node+0x114/0x220
[ 236.811822][ T6771] kernfs_create_link+0xa5/0x1f0
[ 236.811849][ T6771] sysfs_do_create_link_sd+0x85/0x110
[ 236.811870][ T6771] software_node_notify+0xe1/0x1b0
[ 236.811891][ T6771] device_add+0x513/0xbf0
[ 236.811913][ T6771] ? iommufd_test+0x2efb/0x56a0
[ 236.811934][ T6771] iommufd_test+0x3350/0x56a0
[ 236.811964][ T6771] ? __pfx_iommufd_test+0x10/0x10
[ 236.811994][ T6771] ? __lock_acquire+0xad5/0xd80
[ 236.812039][ T6771] iommufd_fops_ioctl+0x4fc/0x610
[ 236.812063][ T6771] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 236.812089][ T6771] ? __fget_files+0x2a/0x420
[ 236.812111][ T6771] ? __fget_files+0x2a/0x420
[ 236.812131][ T6771] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 236.812156][ T6771] __se_sys_ioctl+0xf1/0x160
[ 236.812179][ T6771] do_syscall_64+0xf3/0x230
[ 236.812201][ T6771] ? clear_bhb_loop+0x45/0xa0
[ 236.812221][ T6771] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 236.812238][ T6771] RIP: 0033:0x7f9b9698d169
[ 236.812253][ T6771] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 236.812274][ T6771] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 236.812294][ T6771] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 236.812307][ T6771] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 236.812318][ T6771] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 236.812329][ T6771] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 236.812340][ T6771] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 236.812368][ T6771]
[ 236.813173][ T6771] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 237.157485][ T6773] FAULT_INJECTION: forcing a failure.
[ 237.157485][ T6773] name failslab, interval 1, probability 0, space 0, times 0
[ 237.184938][ T6773] CPU: 1 UID: 0 PID: 6773 Comm: syz.0.316 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 237.184967][ T6773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 237.184979][ T6773] Call Trace:
[ 237.184987][ T6773]
[ 237.184994][ T6773] dump_stack_lvl+0x241/0x360
[ 237.185027][ T6773] ? __pfx_dump_stack_lvl+0x10/0x10
[ 237.185052][ T6773] ? __pfx__printk+0x10/0x10
[ 237.185080][ T6773] ? __pfx___might_resched+0x10/0x10
[ 237.185107][ T6773] should_fail_ex+0x424/0x570
[ 237.185131][ T6773] should_failslab+0xac/0x100
[ 237.185156][ T6773] kmem_cache_alloc_noprof+0x78/0x390
[ 237.185180][ T6773] ? __kernfs_new_node+0xdf/0x890
[ 237.185214][ T6773] __kernfs_new_node+0xdf/0x890
[ 237.185237][ T6773] ? __lock_acquire+0xad5/0xd80
[ 237.185262][ T6773] ? __pfx___kernfs_new_node+0x10/0x10
[ 237.185288][ T6773] ? kernfs_root+0x1c/0x230
[ 237.185307][ T6773] ? kernfs_root+0x1c/0x230
[ 237.185327][ T6773] kernfs_new_node+0x114/0x220
[ 237.185350][ T6773] kernfs_create_link+0xa5/0x1f0
[ 237.185382][ T6773] sysfs_do_create_link_sd+0x85/0x110
[ 237.185403][ T6773] software_node_notify+0xe1/0x1b0
[ 237.185424][ T6773] device_add+0x513/0xbf0
[ 237.185446][ T6773] ? iommufd_test+0x2efb/0x56a0
[ 237.185466][ T6773] iommufd_test+0x3350/0x56a0
[ 237.185496][ T6773] ? __pfx_iommufd_test+0x10/0x10
[ 237.185527][ T6773] ? __lock_acquire+0xad5/0xd80
[ 237.185575][ T6773] iommufd_fops_ioctl+0x4fc/0x610
[ 237.185602][ T6773] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 237.185629][ T6773] ? __fget_files+0x2a/0x420
[ 237.185652][ T6773] ? __fget_files+0x2a/0x420
[ 237.185673][ T6773] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 237.185697][ T6773] __se_sys_ioctl+0xf1/0x160
[ 237.185720][ T6773] do_syscall_64+0xf3/0x230
[ 237.185742][ T6773] ? clear_bhb_loop+0x45/0xa0
[ 237.185763][ T6773] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 237.185779][ T6773] RIP: 0033:0x7f9b9698d169
[ 237.185795][ T6773] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 237.185809][ T6773] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 237.185827][ T6773] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 237.185841][ T6773] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 237.185853][ T6773] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 237.185864][ T6773] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 237.185874][ T6773] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 237.185902][ T6773]
[ 237.186655][ T6773] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 237.493353][ T6775] FAULT_INJECTION: forcing a failure.
[ 237.493353][ T6775] name failslab, interval 1, probability 0, space 0, times 0
[ 237.548034][ T6775] CPU: 0 UID: 0 PID: 6775 Comm: syz.0.317 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 237.548063][ T6775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 237.548074][ T6775] Call Trace:
[ 237.548082][ T6775]
[ 237.548090][ T6775] dump_stack_lvl+0x241/0x360
[ 237.548122][ T6775] ? __pfx_dump_stack_lvl+0x10/0x10
[ 237.548147][ T6775] ? __pfx__printk+0x10/0x10
[ 237.548174][ T6775] ? __pfx___might_resched+0x10/0x10
[ 237.548211][ T6775] should_fail_ex+0x424/0x570
[ 237.548235][ T6775] should_failslab+0xac/0x100
[ 237.548262][ T6775] kmem_cache_alloc_noprof+0x78/0x390
[ 237.548285][ T6775] ? __kernfs_new_node+0xdf/0x890
[ 237.548309][ T6775] __kernfs_new_node+0xdf/0x890
[ 237.548329][ T6775] ? __lock_acquire+0xad5/0xd80
[ 237.548352][ T6775] ? __pfx___kernfs_new_node+0x10/0x10
[ 237.548382][ T6775] ? kernfs_root+0x1c/0x230
[ 237.548400][ T6775] ? kernfs_root+0x1c/0x230
[ 237.548420][ T6775] kernfs_new_node+0x114/0x220
[ 237.548444][ T6775] kernfs_create_dir_ns+0x43/0x120
[ 237.548467][ T6775] sysfs_create_dir_ns+0x1a2/0x3f0
[ 237.548489][ T6775] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 237.548515][ T6775] kobject_add_internal+0x435/0x8d0
[ 237.548547][ T6775] kobject_add+0x15b/0x230
[ 237.548571][ T6775] ? kobject_put+0x43d/0x480
[ 237.548592][ T6775] ? __pfx_kobject_add+0x10/0x10
[ 237.548616][ T6775] ? bus_get_dev_root+0x127/0x160
[ 237.548637][ T6775] ? get_device_parent+0x405/0x410
[ 237.548656][ T6775] ? device_add+0x318/0xbf0
[ 237.548678][ T6775] device_add+0x4e5/0xbf0
[ 237.548698][ T6775] ? iommufd_test+0x2efb/0x56a0
[ 237.548720][ T6775] iommufd_test+0x3350/0x56a0
[ 237.548754][ T6775] ? __pfx_iommufd_test+0x10/0x10
[ 237.548785][ T6775] ? __lock_acquire+0xad5/0xd80
[ 237.548835][ T6775] iommufd_fops_ioctl+0x4fc/0x610
[ 237.548861][ T6775] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 237.548888][ T6775] ? __fget_files+0x2a/0x420
[ 237.548910][ T6775] ? __fget_files+0x2a/0x420
[ 237.548930][ T6775] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 237.548955][ T6775] __se_sys_ioctl+0xf1/0x160
[ 237.548978][ T6775] do_syscall_64+0xf3/0x230
[ 237.548999][ T6775] ? clear_bhb_loop+0x45/0xa0
[ 237.549026][ T6775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 237.549042][ T6775] RIP: 0033:0x7f9b9698d169
[ 237.549059][ T6775] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 237.549073][ T6775] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 237.549093][ T6775] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 237.549106][ T6775] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 237.549117][ T6775] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 237.549129][ T6775] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 237.549139][ T6775] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 237.549167][ T6775]
[ 237.549204][ T6775] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
2025/04/10 19:10:32 executed programs: 304
[ 237.950291][ T6779] FAULT_INJECTION: forcing a failure.
[ 237.950291][ T6779] name failslab, interval 1, probability 0, space 0, times 0
[ 237.964609][ T6779] CPU: 0 UID: 0 PID: 6779 Comm: syz.0.318 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 237.964635][ T6779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 237.964646][ T6779] Call Trace:
[ 237.964654][ T6779]
[ 237.964661][ T6779] dump_stack_lvl+0x241/0x360
[ 237.964694][ T6779] ? __pfx_dump_stack_lvl+0x10/0x10
[ 237.964719][ T6779] ? __pfx__printk+0x10/0x10
[ 237.964746][ T6779] ? __pfx___might_resched+0x10/0x10
[ 237.964773][ T6779] should_fail_ex+0x424/0x570
[ 237.964796][ T6779] should_failslab+0xac/0x100
[ 237.964822][ T6779] kmem_cache_alloc_noprof+0x78/0x390
[ 237.964845][ T6779] ? __kernfs_new_node+0xdf/0x890
[ 237.964875][ T6779] __kernfs_new_node+0xdf/0x890
[ 237.964893][ T6779] ? __lock_acquire+0xad5/0xd80
[ 237.964918][ T6779] ? __pfx___kernfs_new_node+0x10/0x10
[ 237.964945][ T6779] ? kernfs_root+0x1c/0x230
[ 237.964964][ T6779] ? kernfs_root+0x1c/0x230
[ 237.964984][ T6779] kernfs_new_node+0x114/0x220
[ 237.965007][ T6779] kernfs_create_link+0xa5/0x1f0
[ 237.965034][ T6779] sysfs_do_create_link_sd+0x85/0x110
[ 237.965054][ T6779] software_node_notify+0xe1/0x1b0
[ 237.965075][ T6779] device_add+0x513/0xbf0
[ 237.965097][ T6779] ? iommufd_test+0x2efb/0x56a0
[ 237.965118][ T6779] iommufd_test+0x3350/0x56a0
[ 237.965147][ T6779] ? __pfx_iommufd_test+0x10/0x10
[ 237.965177][ T6779] ? __lock_acquire+0xad5/0xd80
[ 237.965225][ T6779] iommufd_fops_ioctl+0x4fc/0x610
[ 237.965253][ T6779] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 237.965280][ T6779] ? __fget_files+0x2a/0x420
[ 237.965301][ T6779] ? __fget_files+0x2a/0x420
[ 237.965322][ T6779] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 237.965347][ T6779] __se_sys_ioctl+0xf1/0x160
[ 237.965369][ T6779] do_syscall_64+0xf3/0x230
[ 237.965391][ T6779] ? clear_bhb_loop+0x45/0xa0
[ 237.965411][ T6779] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 237.965427][ T6779] RIP: 0033:0x7f9b9698d169
[ 237.965443][ T6779] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 237.965456][ T6779] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 237.965475][ T6779] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 237.965488][ T6779] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 237.965499][ T6779] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 237.965510][ T6779] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 237.965526][ T6779] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 237.965554][ T6779]
[ 237.966309][ T6779] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 238.308380][ T6781] FAULT_INJECTION: forcing a failure.
[ 238.308380][ T6781] name failslab, interval 1, probability 0, space 0, times 0
[ 238.323840][ T6781] CPU: 1 UID: 0 PID: 6781 Comm: syz.0.319 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 238.323932][ T6781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 238.323944][ T6781] Call Trace:
[ 238.323952][ T6781]
[ 238.323959][ T6781] dump_stack_lvl+0x241/0x360
[ 238.323991][ T6781] ? __pfx_dump_stack_lvl+0x10/0x10
[ 238.324015][ T6781] ? __pfx__printk+0x10/0x10
[ 238.324043][ T6781] ? __pfx___might_resched+0x10/0x10
[ 238.324070][ T6781] should_fail_ex+0x424/0x570
[ 238.324093][ T6781] should_failslab+0xac/0x100
[ 238.324117][ T6781] kmem_cache_alloc_noprof+0x78/0x390
[ 238.324138][ T6781] ? __kernfs_new_node+0xdf/0x890
[ 238.324160][ T6781] __kernfs_new_node+0xdf/0x890
[ 238.324179][ T6781] ? __lock_acquire+0xad5/0xd80
[ 238.324202][ T6781] ? __pfx___kernfs_new_node+0x10/0x10
[ 238.324229][ T6781] ? kernfs_root+0x1c/0x230
[ 238.324248][ T6781] ? kernfs_root+0x1c/0x230
[ 238.324267][ T6781] kernfs_new_node+0x114/0x220
[ 238.324291][ T6781] kernfs_create_dir_ns+0x43/0x120
[ 238.324315][ T6781] sysfs_create_dir_ns+0x1a2/0x3f0
[ 238.324335][ T6781] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 238.324361][ T6781] kobject_add_internal+0x435/0x8d0
[ 238.324393][ T6781] kobject_add+0x15b/0x230
[ 238.324418][ T6781] ? kobject_put+0x43d/0x480
[ 238.324439][ T6781] ? __pfx_kobject_add+0x10/0x10
[ 238.324462][ T6781] ? bus_get_dev_root+0x127/0x160
[ 238.324484][ T6781] ? get_device_parent+0x405/0x410
[ 238.324502][ T6781] ? device_add+0x318/0xbf0
[ 238.324523][ T6781] device_add+0x4e5/0xbf0
[ 238.324544][ T6781] ? iommufd_test+0x2efb/0x56a0
[ 238.324566][ T6781] iommufd_test+0x3350/0x56a0
[ 238.324591][ T6781] ? __pfx_iommufd_test+0x10/0x10
[ 238.324619][ T6781] ? __lock_acquire+0xad5/0xd80
[ 238.324668][ T6781] iommufd_fops_ioctl+0x4fc/0x610
[ 238.324695][ T6781] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 238.324722][ T6781] ? __fget_files+0x2a/0x420
[ 238.324742][ T6781] ? __fget_files+0x2a/0x420
[ 238.324762][ T6781] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 238.324787][ T6781] __se_sys_ioctl+0xf1/0x160
[ 238.324809][ T6781] do_syscall_64+0xf3/0x230
[ 238.324830][ T6781] ? clear_bhb_loop+0x45/0xa0
[ 238.324851][ T6781] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 238.324875][ T6781] RIP: 0033:0x7f9b9698d169
[ 238.324892][ T6781] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 238.324906][ T6781] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 238.324925][ T6781] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 238.324938][ T6781] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 238.324949][ T6781] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 238.324960][ T6781] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 238.324970][ T6781] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 238.324998][ T6781]
[ 238.325149][ T6781] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 238.666573][ T6784] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 238.694980][ T6786] FAULT_INJECTION: forcing a failure.
[ 238.694980][ T6786] name failslab, interval 1, probability 0, space 0, times 0
[ 238.732815][ T6786] CPU: 1 UID: 0 PID: 6786 Comm: syz.0.321 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 238.732841][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 238.732852][ T6786] Call Trace:
[ 238.732859][ T6786]
[ 238.732867][ T6786] dump_stack_lvl+0x241/0x360
[ 238.732906][ T6786] ? __pfx_dump_stack_lvl+0x10/0x10
[ 238.732929][ T6786] ? __pfx__printk+0x10/0x10
[ 238.732954][ T6786] ? __pfx___might_resched+0x10/0x10
[ 238.732978][ T6786] should_fail_ex+0x424/0x570
[ 238.732999][ T6786] should_failslab+0xac/0x100
[ 238.733022][ T6786] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 238.733046][ T6786] ? __kernfs_new_node+0xa2/0x890
[ 238.733063][ T6786] ? kernel_text_address+0xa7/0xe0
[ 238.733083][ T6786] kstrdup+0x42/0x100
[ 238.733103][ T6786] __kernfs_new_node+0xa2/0x890
[ 238.733123][ T6786] ? __lock_acquire+0xad5/0xd80
[ 238.733144][ T6786] ? __pfx___kernfs_new_node+0x10/0x10
[ 238.733172][ T6786] ? kernfs_root+0x1c/0x230
[ 238.733190][ T6786] ? kernfs_root+0x1c/0x230
[ 238.733210][ T6786] kernfs_new_node+0x114/0x220
[ 238.733232][ T6786] kernfs_create_dir_ns+0x43/0x120
[ 238.733255][ T6786] sysfs_create_dir_ns+0x1a2/0x3f0
[ 238.733274][ T6786] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 238.733298][ T6786] kobject_add_internal+0x435/0x8d0
[ 238.733327][ T6786] kobject_add+0x15b/0x230
[ 238.733350][ T6786] ? kobject_put+0x43d/0x480
[ 238.733369][ T6786] ? __pfx_kobject_add+0x10/0x10
[ 238.733392][ T6786] ? bus_get_dev_root+0x127/0x160
[ 238.733414][ T6786] ? get_device_parent+0x405/0x410
[ 238.733431][ T6786] ? device_add+0x318/0xbf0
[ 238.733453][ T6786] device_add+0x4e5/0xbf0
[ 238.733474][ T6786] ? iommufd_test+0x2efb/0x56a0
[ 238.733495][ T6786] iommufd_test+0x3350/0x56a0
[ 238.733525][ T6786] ? __pfx_iommufd_test+0x10/0x10
[ 238.733554][ T6786] ? __lock_acquire+0xad5/0xd80
[ 238.733604][ T6786] iommufd_fops_ioctl+0x4fc/0x610
[ 238.733631][ T6786] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 238.733659][ T6786] ? __fget_files+0x2a/0x420
[ 238.733680][ T6786] ? __fget_files+0x2a/0x420
[ 238.733700][ T6786] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 238.733725][ T6786] __se_sys_ioctl+0xf1/0x160
[ 238.733749][ T6786] do_syscall_64+0xf3/0x230
[ 238.733770][ T6786] ? clear_bhb_loop+0x45/0xa0
[ 238.733790][ T6786] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 238.733807][ T6786] RIP: 0033:0x7f9b9698d169
[ 238.733823][ T6786] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 238.733837][ T6786] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 238.733856][ T6786] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 238.733870][ T6786] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 238.733881][ T6786] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 238.733902][ T6786] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 238.733913][ T6786] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 238.733940][ T6786]
[ 238.733952][ T6786] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 239.074846][ T6789] FAULT_INJECTION: forcing a failure.
[ 239.074846][ T6789] name failslab, interval 1, probability 0, space 0, times 0
[ 239.098219][ T6789] CPU: 0 UID: 0 PID: 6789 Comm: syz.0.322 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 239.098246][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 239.098257][ T6789] Call Trace:
[ 239.098265][ T6789]
[ 239.098273][ T6789] dump_stack_lvl+0x241/0x360
[ 239.098307][ T6789] ? __pfx_dump_stack_lvl+0x10/0x10
[ 239.098330][ T6789] ? __pfx__printk+0x10/0x10
[ 239.098358][ T6789] ? __pfx___might_resched+0x10/0x10
[ 239.098384][ T6789] should_fail_ex+0x424/0x570
[ 239.098407][ T6789] should_failslab+0xac/0x100
[ 239.098433][ T6789] kmem_cache_alloc_noprof+0x78/0x390
[ 239.098455][ T6789] ? __kernfs_new_node+0xdf/0x890
[ 239.098478][ T6789] __kernfs_new_node+0xdf/0x890
[ 239.098496][ T6789] ? __lock_acquire+0xad5/0xd80
[ 239.098521][ T6789] ? __pfx___kernfs_new_node+0x10/0x10
[ 239.098547][ T6789] ? kernfs_root+0x1c/0x230
[ 239.098566][ T6789] ? kernfs_root+0x1c/0x230
[ 239.098586][ T6789] kernfs_new_node+0x114/0x220
[ 239.098609][ T6789] kernfs_create_link+0xa5/0x1f0
[ 239.098635][ T6789] sysfs_do_create_link_sd+0x85/0x110
[ 239.098656][ T6789] software_node_notify+0xe1/0x1b0
[ 239.098677][ T6789] device_add+0x513/0xbf0
[ 239.098699][ T6789] ? iommufd_test+0x2efb/0x56a0
[ 239.098720][ T6789] iommufd_test+0x3350/0x56a0
[ 239.098748][ T6789] ? __pfx_iommufd_test+0x10/0x10
[ 239.098778][ T6789] ? __lock_acquire+0xad5/0xd80
[ 239.098828][ T6789] iommufd_fops_ioctl+0x4fc/0x610
[ 239.098854][ T6789] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 239.098881][ T6789] ? __fget_files+0x2a/0x420
[ 239.098903][ T6789] ? __fget_files+0x2a/0x420
[ 239.098923][ T6789] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 239.098949][ T6789] __se_sys_ioctl+0xf1/0x160
[ 239.098972][ T6789] do_syscall_64+0xf3/0x230
[ 239.099005][ T6789] ? clear_bhb_loop+0x45/0xa0
[ 239.099026][ T6789] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 239.099043][ T6789] RIP: 0033:0x7f9b9698d169
[ 239.099058][ T6789] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 239.099073][ T6789] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 239.099093][ T6789] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 239.099106][ T6789] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 239.099118][ T6789] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 239.099129][ T6789] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 239.099140][ T6789] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 239.099168][ T6789]
[ 239.099914][ T6789] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 239.469587][ T6793] FAULT_INJECTION: forcing a failure.
[ 239.469587][ T6793] name failslab, interval 1, probability 0, space 0, times 0
[ 239.485278][ T6793] CPU: 1 UID: 0 PID: 6793 Comm: syz.0.323 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 239.485303][ T6793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 239.485314][ T6793] Call Trace:
[ 239.485322][ T6793]
[ 239.485330][ T6793] dump_stack_lvl+0x241/0x360
[ 239.485361][ T6793] ? __pfx_dump_stack_lvl+0x10/0x10
[ 239.485385][ T6793] ? __pfx__printk+0x10/0x10
[ 239.485412][ T6793] ? __pfx___might_resched+0x10/0x10
[ 239.485438][ T6793] should_fail_ex+0x424/0x570
[ 239.485462][ T6793] should_failslab+0xac/0x100
[ 239.485487][ T6793] kmem_cache_alloc_noprof+0x78/0x390
[ 239.485511][ T6793] ? __kernfs_new_node+0xdf/0x890
[ 239.485534][ T6793] __kernfs_new_node+0xdf/0x890
[ 239.485550][ T6793] ? __lock_acquire+0xad5/0xd80
[ 239.485572][ T6793] ? __pfx___kernfs_new_node+0x10/0x10
[ 239.485596][ T6793] ? kernfs_root+0x1c/0x230
[ 239.485612][ T6793] ? kernfs_root+0x1c/0x230
[ 239.485632][ T6793] kernfs_new_node+0x114/0x220
[ 239.485655][ T6793] kernfs_create_link+0xa5/0x1f0
[ 239.485689][ T6793] sysfs_do_create_link_sd+0x85/0x110
[ 239.485710][ T6793] software_node_notify+0xe1/0x1b0
[ 239.485738][ T6793] device_add+0x513/0xbf0
[ 239.485759][ T6793] ? iommufd_test+0x2efb/0x56a0
[ 239.485780][ T6793] iommufd_test+0x3350/0x56a0
[ 239.485809][ T6793] ? __pfx_iommufd_test+0x10/0x10
[ 239.485839][ T6793] ? __lock_acquire+0xad5/0xd80
[ 239.485888][ T6793] iommufd_fops_ioctl+0x4fc/0x610
[ 239.485914][ T6793] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 239.485940][ T6793] ? __fget_files+0x2a/0x420
[ 239.485962][ T6793] ? __fget_files+0x2a/0x420
[ 239.485982][ T6793] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 239.486006][ T6793] __se_sys_ioctl+0xf1/0x160
[ 239.486028][ T6793] do_syscall_64+0xf3/0x230
[ 239.486050][ T6793] ? clear_bhb_loop+0x45/0xa0
[ 239.486071][ T6793] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 239.486087][ T6793] RIP: 0033:0x7f9b9698d169
[ 239.486102][ T6793] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 239.486117][ T6793] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 239.486136][ T6793] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 239.486149][ T6793] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 239.486161][ T6793] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 239.486172][ T6793] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 239.486183][ T6793] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 239.486211][ T6793]
[ 239.486968][ T6793] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 239.794293][ T6795] FAULT_INJECTION: forcing a failure.
[ 239.794293][ T6795] name failslab, interval 1, probability 0, space 0, times 0
[ 239.843843][ T6795] CPU: 0 UID: 0 PID: 6795 Comm: syz.0.324 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 239.843871][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 239.843883][ T6795] Call Trace:
[ 239.843891][ T6795]
[ 239.843899][ T6795] dump_stack_lvl+0x241/0x360
[ 239.843939][ T6795] ? __pfx_dump_stack_lvl+0x10/0x10
[ 239.843964][ T6795] ? __pfx__printk+0x10/0x10
[ 239.844002][ T6795] ? __pfx___might_resched+0x10/0x10
[ 239.844029][ T6795] should_fail_ex+0x424/0x570
[ 239.844050][ T6795] should_failslab+0xac/0x100
[ 239.844075][ T6795] kmem_cache_alloc_noprof+0x78/0x390
[ 239.844098][ T6795] ? __kernfs_new_node+0xdf/0x890
[ 239.844122][ T6795] __kernfs_new_node+0xdf/0x890
[ 239.844141][ T6795] ? __lock_acquire+0xad5/0xd80
[ 239.844169][ T6795] ? __pfx___kernfs_new_node+0x10/0x10
[ 239.844197][ T6795] ? kernfs_root+0x1c/0x230
[ 239.844216][ T6795] ? kernfs_root+0x1c/0x230
[ 239.844236][ T6795] kernfs_new_node+0x114/0x220
[ 239.844260][ T6795] kernfs_create_dir_ns+0x43/0x120
[ 239.844283][ T6795] sysfs_create_dir_ns+0x1a2/0x3f0
[ 239.844304][ T6795] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 239.844330][ T6795] kobject_add_internal+0x435/0x8d0
[ 239.844362][ T6795] kobject_add+0x15b/0x230
[ 239.844386][ T6795] ? kobject_put+0x43d/0x480
[ 239.844408][ T6795] ? __pfx_kobject_add+0x10/0x10
[ 239.844431][ T6795] ? bus_get_dev_root+0x127/0x160
[ 239.844453][ T6795] ? get_device_parent+0x405/0x410
[ 239.844471][ T6795] ? device_add+0x318/0xbf0
[ 239.844493][ T6795] device_add+0x4e5/0xbf0
[ 239.844514][ T6795] ? iommufd_test+0x2efb/0x56a0
[ 239.844533][ T6795] iommufd_test+0x3350/0x56a0
[ 239.844562][ T6795] ? __pfx_iommufd_test+0x10/0x10
[ 239.844592][ T6795] ? __lock_acquire+0xad5/0xd80
[ 239.844641][ T6795] iommufd_fops_ioctl+0x4fc/0x610
[ 239.844668][ T6795] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 239.844695][ T6795] ? __fget_files+0x2a/0x420
[ 239.844716][ T6795] ? __fget_files+0x2a/0x420
[ 239.844736][ T6795] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 239.844761][ T6795] __se_sys_ioctl+0xf1/0x160
[ 239.844784][ T6795] do_syscall_64+0xf3/0x230
[ 239.844805][ T6795] ? clear_bhb_loop+0x45/0xa0
[ 239.844826][ T6795] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 239.844843][ T6795] RIP: 0033:0x7f9b9698d169
[ 239.844859][ T6795] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 239.844874][ T6795] RSP: 002b:00007f9b97811038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 239.844893][ T6795] RAX: ffffffffffffffda RBX: 00007f9b96ba5fa0 RCX: 00007f9b9698d169
[ 239.844907][ T6795] RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
[ 239.844918][ T6795] RBP: 00007f9b97811090 R08: 0000000000000000 R09: 0000000000000000
[ 239.844935][ T6795] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 239.844946][ T6795] R13: 0000000000000000 R14: 00007f9b96ba5fa0 R15: 00007ffdffe22b58
[ 239.844972][ T6795]
[ 239.844999][ T6795] kobject: kobject_add_internal failed for iommufd_mock0 (error: -12 parent: devices)
[ 240.242104][ T6797] iommufd_mock iommufd_mock0: Adding to iommu group 0
[ 240.273448][ T6799] FAULT_INJECTION: forcing a failure.
[ 240.273448][ T6799] name failslab, interval 1, probability 0, space 0, times 0
[ 240.298907][ T6799] CPU: 1 UID: 0 PID: 6799 Comm: syz.0.326 Not tainted 6.15.0-rc1-syzkaller-gab59a8605604-dirty #0 PREEMPT(full)
[ 240.298936][ T6799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 240.298947][ T6799] Call Trace:
[ 240.298955][ T6799]
[ 240.298963][ T6799] dump_stack_lvl+0x241/0x360
[ 240.298996][ T6799] ? __pfx_dump_stack_lvl+0x10/0x10
[ 240.299020][ T6799] ? __pfx__printk+0x10/0x10
[ 240.299046][ T6799] ? __pfx___might_resched+0x10/0x10
[ 240.299074][ T6799] should_fail_ex+0x424/0x570
[ 240.299098][ T6799] should_failslab+0xac/0x100
[ 240.299123][ T6799] __kmalloc_node_track_caller_noprof+0xe2/0x4d0
[ 240.299148][ T6799] ? __kernfs_new_node+0xa2/0x890
[ 240.299165][ T6799] ? kernel_text_address+0xa7/0xe0
[ 240.299185][ T6799] kstrdup+0x42/0x100
[ 240.299208][ T6799] __kernfs_new_node+0xa2/0x890
[ 240.299227][ T6799] ? __lock_acquire+0xad5/0xd80
[ 240.299249][ T6799] ? __pfx___kernfs_new_node+0x10/0x10
[ 240.299277][ T6799] ? kernfs_root+0x1c/0x230
[ 240.299296][ T6799] ? kernfs_root+0x1c/0x230
[ 240.299315][ T6799] kernfs_new_node+0x114/0x220
[ 240.299338][ T6799] kernfs_create_dir_ns+0x43/0x120
[ 240.299358][ T6799] sysfs_create_dir_ns+0x1a2/0x3f0
[ 240.299377][ T6799] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 240.299399][ T6799] kobject_add_internal+0x435/0x8d0
[ 240.299430][ T6799] kobject_add+0x15b/0x230
[ 240.299454][ T6799] ? kobject_put+0x43d/0x480
[ 240.299474][ T6799] ? __pfx_kobject_add+0x10/0x10
[ 240.299498][ T6799] ? bus_get_dev_root+0x127/0x160
[ 240.299519][ T6799] ? get_device_parent+0x405/0x410
[ 240.299537][ T6799] ? device_add+0x318/0xbf0
[ 240.299557][ T6799] device_add+0x4e5/0xbf0
[ 240.299578][ T6799] ? iommufd_test+0x2efb/0x56a0
[ 240.299599][ T6799] iommufd_test+0x3350/0x56a0
[ 240.299629][ T6799] ? __pfx_iommufd_test+0x10/0x10
[ 240.299659][ T6799] ? __lock_acquire+0xad5/0xd80
[ 240.299704][ T6799] iommufd_fops_ioctl+0x4fc/0x610
[ 240.299731][ T6799] ? __pfx_iommufd_fops_ioctl+0x10/0x10
[ 240.299767][ T6799] ? __fget_files+0x2a/0x420