audit: type=1400 audit(1571511227.518:110): avc: denied { map } for pid=10888 comm="syz-executor.3" path="/dev/usbmon0" dev="devtmpfs" ino=13837 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usbmon_device_t:s0 tclass=chr_file permissive=1 ====================================================== WARNING: possible circular locking dependency detected 4.14.150 #0 Not tainted ------------------------------------------------------ syz-executor.3/10890 is trying to acquire lock: (&rp->fetch_lock){+.+.}, at: [] mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 but task is already holding lock: (&mm->mmap_sem){++++}, at: [] __mm_populate+0x1e5/0x2c0 mm/gup.c:1259 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mm->mmap_sem){++++}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 net_ratelimit: 7 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 __might_fault mm/memory.c:4584 [inline] __might_fault+0x143/0x1d0 mm/memory.c:4569 _copy_to_user+0x2c/0xd0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] mon_bin_get_event+0x10a/0x430 drivers/usb/mon/mon_bin.c:756 protocol 88fb is buggy, dev hsr_slave_1 mon_bin_ioctl+0x9b4/0xb50 drivers/usb/mon/mon_bin.c:1067 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #0 (&rp->fetch_lock){+.+.}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 __do_fault+0x104/0x390 mm/memory.c:3223 do_cow_fault mm/memory.c:3662 [inline] do_fault mm/memory.c:3761 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0xde1/0x3470 mm/memory.c:4113 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150 faultin_page mm/gup.c:514 [inline] __get_user_pages+0x465/0x1220 mm/gup.c:714 populate_vma_page_range+0x18e/0x230 mm/gup.c:1231 __mm_populate+0x198/0x2c0 mm/gup.c:1279 mm_populate include/linux/mm.h:2187 [inline] vm_mmap_pgoff+0x1be/0x1d0 mm/util.c:338 SYSC_mmap_pgoff mm/mmap.c:1551 [inline] SyS_mmap_pgoff+0x3ca/0x520 mm/mmap.c:1509 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); protocol 88fb is buggy, dev hsr_slave_0 lock(&rp->fetch_lock); lock(&mm->mmap_sem); protocol 88fb is buggy, dev hsr_slave_1 lock(&rp->fetch_lock); *** DEADLOCK *** 1 lock held by syz-executor.3/10890: #0: (&mm->mmap_sem){++++}, at: [] __mm_populate+0x1e5/0x2c0 mm/gup.c:1259 stack backtrace: CPU: 0 PID: 10890 Comm: syz-executor.3 Not tainted 4.14.150 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 __do_fault+0x104/0x390 mm/memory.c:3223 do_cow_fault mm/memory.c:3662 [inline] do_fault mm/memory.c:3761 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0xde1/0x3470 mm/memory.c:4113 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150 faultin_page mm/gup.c:514 [inline] __get_user_pages+0x465/0x1220 mm/gup.c:714 populate_vma_page_range+0x18e/0x230 mm/gup.c:1231 __mm_populate+0x198/0x2c0 mm/gup.c:1279 mm_populate include/linux/mm.h:2187 [inline] vm_mmap_pgoff+0x1be/0x1d0 mm/util.c:338 SYSC_mmap_pgoff mm/mmap.c:1551 [inline] SyS_mmap_pgoff+0x3ca/0x520 mm/mmap.c:1509 protocol 88fb is buggy, dev hsr_slave_0 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 protocol 88fb is buggy, dev hsr_slave_1 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a59 RSP: 002b:00007f91bf223c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459a59 RDX: 0000000001000002 RSI: 0000000000400300 RDI: 0000000020a05000 RBP: 000000000075bf20 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000008012 R11: 0000000000000246 R12: 00007f91bf2246d4 R13: 00000000004c6176 R14: 00000000004db240 R15: 00000000ffffffff kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '7:0' (ffff8880a1f90cd0): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '7:0' (ffff8880a1f90cd0): kobject_uevent_env kobject: '7:0' (ffff8880a1f90cd0): fill_kobj_path: path = '/devices/virtual/bdi/7:0' kobject: 'loop0' (ffff88805a1ff560): kobject_add_internal: parent: 'block', set: 'devices' kobject: 'loop0' (ffff88805a1ff560): kobject_uevent_env kobject: 'loop0' (ffff88805a1ff560): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'holders' (ffff8880a9413980): kobject_add_internal: parent: 'loop0', set: '' kobject: 'slaves' (ffff888097b4e900): kobject_add_internal: parent: 'loop0', set: '' kobject: 'loop0' (ffff88805a1ff560): kobject_uevent_env kobject: 'loop0' (ffff88805a1ff560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queue' (ffff8880a492d148): kobject_add_internal: parent: 'loop0', set: '' kobject: 'mq' (ffff8880a492d188): kobject_add_internal: parent: 'loop0', set: '' kobject: 'mq' (ffff8880a492d188): kobject_uevent_env kobject: 'mq' (ffff8880a492d188): kobject_uevent_env: filter function caused the event to drop! kobject: '0' (ffff88808eebfd28): kobject_add_internal: parent: 'mq', set: '' kobject: 'cpu0' (ffffe8ffffc81e98): kobject_add_internal: parent: '0', set: '' kobject: 'cpu1' (ffffe8ffffd81e98): kobject_add_internal: parent: '0', set: '' kobject: 'queue' (ffff8880a492d148): kobject_uevent_env kobject: 'queue' (ffff8880a492d148): kobject_uevent_env: filter function caused the event to drop! kobject: 'iosched' (ffff88808eebe490): kobject_add_internal: parent: 'queue', set: '' kobject: 'iosched' (ffff88808eebe490): kobject_uevent_env kobject: 'iosched' (ffff88808eebe490): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff88805a1ffa50): kobject_add_internal: parent: 'loop0', set: '' kobject: 'integrity' (ffff88805a1ffa50): kobject_uevent_env kobject: 'integrity' (ffff88805a1ffa50): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff88805a1ffa50): kobject_uevent_env kobject: 'integrity' (ffff88805a1ffa50): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff88805a1ffa50): kobject_cleanup, parent (null) kobject: 'integrity' (ffff88805a1ffa50): does not have a release() function, it is broken and must be fixed. kobject: 'integrity': free name kobject: '7:0' (ffff8880a1f90cd0): kobject_uevent_env kobject: '7:0' (ffff8880a1f90cd0): fill_kobj_path: path = '/devices/virtual/bdi/7:0' kobject: '7:0' (ffff8880a1f90cd0): kobject_cleanup, parent (null) kobject: '7:0' (ffff8880a1f90cd0): calling ktype release kobject: '7:0': free name kobject: 'mq' (ffff8880a492d188): kobject_uevent_env kobject: 'mq' (ffff8880a492d188): kobject_uevent_env: filter function caused the event to drop! kobject: 'iosched' (ffff88808eebe490): kobject_uevent_env kobject: 'iosched' (ffff88808eebe490): kobject_uevent_env: filter function caused the event to drop! kobject: 'queue' (ffff8880a492d148): kobject_uevent_env kobject: 'queue' (ffff8880a492d148): kobject_uevent_env: filter function caused the event to drop! kobject: 'holders' (ffff8880a9413980): kobject_cleanup, parent ffff88805a1ff560 kobject: 'holders' (ffff8880a9413980): auto cleanup kobject_del kobject: 'holders' (ffff8880a9413980): calling ktype release kobject: (ffff8880a9413980): dynamic_kobj_release kobject: 'holders': free name kobject: 'slaves' (ffff888097b4e900): kobject_cleanup, parent ffff88805a1ff560 kobject: 'slaves' (ffff888097b4e900): auto cleanup kobject_del kobject: 'slaves' (ffff888097b4e900): calling ktype release kobject: (ffff888097b4e900): dynamic_kobj_release kobject: 'slaves': free name kobject: 'loop0' (ffff88805a1ff560): kobject_uevent_env kobject: 'loop0' (ffff88805a1ff560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop0' (ffff88805a1ff560): kobject_cleanup, parent (null) kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff88805a1ff560): calling ktype release kobject: 'queue' (ffff8880a492d148): kobject_cleanup, parent (null) kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'queue' (ffff8880a492d148): calling ktype release kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queue': free name kobject: 'iosched' (ffff88808eebe490): kobject_cleanup, parent (null) kobject: 'loop0': free name kobject: 'iosched' (ffff88808eebe490): calling ktype release kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'iosched': free name kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0' (ffff88808eebfd28): kobject_cleanup, parent (null) kobject: '0' (ffff88808eebfd28): calling ktype release kobject: '0': free name kobject: 'cpu0' (ffffe8ffffc81e98): kobject_cleanup, parent (null) kobject: 'cpu0' (ffffe8ffffc81e98): calling ktype release kobject: 'cpu0': free name kobject: 'cpu1' (ffffe8ffffd81e98): kobject_cleanup, parent (null) kobject: 'cpu1' (ffffe8ffffd81e98): calling ktype release kobject: 'cpu1': free name kobject: 'mq' (ffff8880a492d188): kobject_cleanup, parent (null) kobject: 'mq' (ffff8880a492d188): calling ktype release kobject: 'mq': free name kobject: '7:0' (ffff88804f75b310): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '7:0' (ffff88804f75b310): kobject_uevent_env kobject: '7:0' (ffff88804f75b310): fill_kobj_path: path = '/devices/virtual/bdi/7:0' kobject: 'loop0' (ffff888098e032a0): kobject_add_internal: parent: 'block', set: 'devices' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'holders' (ffff888090ebd200): kobject_add_internal: parent: 'loop0', set: '' kobject: 'slaves' (ffff888097b4e500): kobject_add_internal: parent: 'loop0', set: '' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queue' (ffff88809daa9048): kobject_add_internal: parent: 'loop0', set: '' kobject: 'mq' (ffff88809daa9088): kobject_add_internal: parent: 'loop0', set: '' kobject: 'mq' (ffff88809daa9088): kobject_uevent_env kobject: 'mq' (ffff88809daa9088): kobject_uevent_env: filter function caused the event to drop! kobject: '0' (ffff88809edc7428): kobject_add_internal: parent: 'mq', set: '' kobject: 'cpu0' (ffffe8ffffc81c98): kobject_add_internal: parent: '0', set: '' kobject: 'cpu1' (ffffe8ffffd81c98): kobject_add_internal: parent: '0', set: '' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'queue' (ffff88809daa9048): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_1 kobject: 'queue' (ffff88809daa9048): kobject_uevent_env: filter function caused the event to drop! kobject: 'iosched' (ffff88809edc6490): kobject_add_internal: parent: 'queue', set: '' kobject: 'iosched' (ffff88809edc6490): kobject_uevent_env kobject: 'iosched' (ffff88809edc6490): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff888098e03790): kobject_add_internal: parent: 'loop0', set: '' kobject: 'integrity' (ffff888098e03790): kobject_uevent_env kobject: 'integrity' (ffff888098e03790): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' audit: type=1400 audit(1571511231.328:111): avc: denied { create } for pid=11031 comm="syz-executor.3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 netlink: 3 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 3 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'nr0' (ffff888052bd9170): kobject_add_internal: parent: 'net', set: 'devices' audit: type=1400 audit(1571511231.328:112): avc: denied { write } for pid=11031 comm="syz-executor.3" path="socket:[41716]" dev="sockfs" ino=41716 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'nr0' (ffff888052bd9170): kobject_uevent_env netlink: 3 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'nr0' (ffff888052bd9170): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff8880a4ed6b48): kobject_add_internal: parent: 'nr0', set: '' kobject: 'queues' (ffff8880a4ed6b48): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'queues' (ffff8880a4ed6b48): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff888047231150): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff888047231150): kobject_uevent_env kobject: 'rx-0' (ffff888047231150): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'tx-0' (ffff888044d80418): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff888044d80418): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (ffff888044d80418): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'batman_adv' (ffff88808a2c6700): kobject_add_internal: parent: 'nr0', set: '' kobject: 'tx-1' (ffff888044d80598): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-1' (ffff888044d80598): kobject_uevent_env kobject: 'tx-1' (ffff888044d80598): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-1' kobject: 'rx-1' (ffff8880472311d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-1' (ffff8880472311d0): kobject_uevent_env kobject: 'rx-1' (ffff8880472311d0): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-1' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env device nr0 entered promiscuous mode kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'tx-1' (ffff888044d80598): kobject_cleanup, parent ffff8880a4ed6b48 kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-1' (ffff888044d80598): auto cleanup 'remove' event kobject: 'tx-1' (ffff888044d80598): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tx-1' (ffff888044d80598): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-1' kobject: 'tx-1' (ffff888044d80598): auto cleanup kobject_del kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'tx-1' (ffff888044d80598): calling ktype release kobject: 'tx-1': free name kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-1' (ffff8880472311d0): kobject_cleanup, parent ffff8880a4ed6b48 kobject: 'rx-1' (ffff8880472311d0): auto cleanup 'remove' event kobject: 'rx-1' (ffff8880472311d0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-1' (ffff8880472311d0): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-1' kobject: 'rx-1' (ffff8880472311d0): auto cleanup kobject_del kobject: 'rx-1' (ffff8880472311d0): calling ktype release kobject: 'rx-1': free name kobject: 'kvm' (ffff8880a6ec4bd0): kobject_uevent_env kobject: 'batman_adv' (ffff88808a2c6700): kobject_uevent_env kobject: 'kvm' (ffff8880a6ec4bd0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'batman_adv' (ffff88808a2c6700): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'batman_adv' (ffff88808a2c6700): kobject_cleanup, parent (null) kobject: 'batman_adv' (ffff88808a2c6700): calling ktype release kobject: (ffff88808a2c6700): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (ffff888047231150): kobject_cleanup, parent ffff8880a4ed6b48 kobject: 'rx-0' (ffff888047231150): auto cleanup 'remove' event kobject: 'rx-0' (ffff888047231150): kobject_uevent_env kobject: 'rx-0' (ffff888047231150): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'rx-0' (ffff888047231150): auto cleanup kobject_del kobject: 'rx-0' (ffff888047231150): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (ffff888044d80418): kobject_cleanup, parent ffff8880a4ed6b48 kobject: 'tx-0' (ffff888044d80418): auto cleanup 'remove' event kobject: 'tx-0' (ffff888044d80418): kobject_uevent_env kobject: 'tx-0' (ffff888044d80418): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'tx-0' (ffff888044d80418): auto cleanup kobject_del kobject: 'tx-0' (ffff888044d80418): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (ffff8880a4ed6b48): kobject_cleanup, parent (null) kobject: 'queues' (ffff8880a4ed6b48): calling ktype release kobject: 'queues' (ffff8880a4ed6b48): kset_release kobject: 'queues': free name kobject: 'nr0' (ffff888052bd9170): kobject_uevent_env kobject: 'nr0' (ffff888052bd9170): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'nr0' (ffff888052bd9170): kobject_cleanup, parent (null) kobject: 'nr0' (ffff888052bd9170): calling ktype release kobject: 'nr0': free name kobject: 'nr0' (ffff8880576c9730): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'nr0' (ffff8880576c9730): kobject_uevent_env kobject: 'nr0' (ffff8880576c9730): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'queues' (ffff888094f63348): kobject_add_internal: parent: 'nr0', set: '' kobject: 'queues' (ffff888094f63348): kobject_uevent_env kobject: 'queues' (ffff888094f63348): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff888045d30950): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff888045d30950): kobject_uevent_env kobject: 'rx-0' (ffff888045d30950): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'tx-0' (ffff888049dc0518): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888049dc0518): kobject_uevent_env kobject: 'tx-0' (ffff888049dc0518): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'batman_adv' (ffff8880a86b7880): kobject_add_internal: parent: 'nr0', set: '' kobject: 'batman_adv' (ffff8880a86b7880): kobject_uevent_env kobject: 'batman_adv' (ffff8880a86b7880): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (ffff8880a86b7880): kobject_cleanup, parent (null) kobject: 'batman_adv' (ffff8880a86b7880): calling ktype release kobject: (ffff8880a86b7880): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (ffff888045d30950): kobject_cleanup, parent ffff888094f63348 kobject: 'rx-0' (ffff888045d30950): auto cleanup 'remove' event kobject: 'rx-0' (ffff888045d30950): kobject_uevent_env kobject: 'rx-0' (ffff888045d30950): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'rx-0' (ffff888045d30950): auto cleanup kobject_del kobject: 'rx-0' (ffff888045d30950): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (ffff888049dc0518): kobject_cleanup, parent ffff888094f63348 kobject: 'tx-0' (ffff888049dc0518): auto cleanup 'remove' event kobject: 'tx-0' (ffff888049dc0518): kobject_uevent_env kobject: 'tx-0' (ffff888049dc0518): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'tx-0' (ffff888049dc0518): auto cleanup kobject_del kobject: 'tx-0' (ffff888049dc0518): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (ffff888094f63348): kobject_cleanup, parent (null) kobject: 'queues' (ffff888094f63348): calling ktype release kobject: 'queues' (ffff888094f63348): kset_release kobject: 'queues': free name kobject: 'nr0' (ffff8880576c9730): kobject_uevent_env kobject: 'nr0' (ffff8880576c9730): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'nr0' (ffff8880576c9730): kobject_cleanup, parent (null) kobject: 'nr0' (ffff8880576c9730): calling ktype release kobject: 'nr0': free name kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' net_ratelimit: 14 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (ffff8880a49eb7e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49eb7e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'bridge5' (ffff88804afdc6b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'bridge5' (ffff88804afdc6b0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'bridge5' (ffff88804afdc6b0): fill_kobj_path: path = '/devices/virtual/net/bridge5' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (ffff8880a078ee48): kobject_add_internal: parent: 'bridge5', set: '' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'queues' (ffff8880a078ee48): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff8880a078ee48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff888083277490): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff888083277490): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff888083277490): fill_kobj_path: path = '/devices/virtual/net/bridge5/queues/rx-0' kobject: 'tx-0' (ffff88809d97aa18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88809d97aa18): kobject_uevent_env kobject: 'tx-0' (ffff88809d97aa18): fill_kobj_path: path = '/devices/virtual/net/bridge5/queues/tx-0' kobject: 'brif' (ffff8880a3d8b000): kobject_add_internal: parent: 'bridge5', set: '' kobject: 'batman_adv' (ffff8880830a5c80): kobject_add_internal: parent: 'bridge5', set: '' overlayfs: filesystem on './file0' not supported as upperdir kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49eb7e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49eb7e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop2' (ffff8880a49eb7e0): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (ffff8880a49eb7e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49eb7e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49eb7e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. kobject: 'bridge1' (ffff888048b8c970): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (ffff8880a4999760): kobject_uevent_env kobject: 'bridge1' (ffff888048b8c970): kobject_uevent_env kobject: 'loop1' (ffff8880a4999760): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'bridge1' (ffff888048b8c970): fill_kobj_path: path = '/devices/virtual/net/bridge1' kobject: 'loop4' (ffff8880a4a68120): kobject_uevent_env kobject: 'queues' (ffff888093f46d48): kobject_add_internal: parent: 'bridge1', set: '' kobject: 'loop4' (ffff8880a4a68120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (ffff888093f46d48): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'queues' (ffff888093f46d48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff888098e032a0): kobject_uevent_env kobject: 'loop0' (ffff888098e032a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a4a531e0): kobject_uevent_env kobject: 'loop3' (ffff8880a4a531e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff8880833993d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880833993d0): kobject_uevent_env kobject: 'rx-0' (ffff8880833993d0): fill_kobj_path: path = '/devices/virtual/net/bridge1/queues/rx-0' kobject: 'tx-0' (ffff888099e78598): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888099e78598): kobject_uevent_env kobject: 'tx-0' (ffff888099e78598): fill_kobj_path: path = '/devices/virtual/net/bridge1/queues/tx-0' kobject: 'brif' (ffff88807f27f780): kobject_add_internal: parent: 'bridge1', set: '' kobject: 'batman_adv' (ffff8880730b2900): kobject_add_internal: parent: 'bridge1', set: '' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. kobject: 'loop5' (ffff8880a4ac2a20): kobject_uevent_env kobject: 'loop5' (ffff8880a4ac2a20): fill_kobj_path: path = '/devices/virtual/block/loop5'