audit: type=1800 audit(1574095055.869:196): pid=17735 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed" comm="syz-executor.5" name="bus" dev="sda1" ino=16610 res=0 ====================================================== kobject: 'wlan2' (ffff88803f0f5bf0): kobject_uevent_env WARNING: possible circular locking dependency detected 4.14.154 #0 Not tainted ------------------------------------------------------ syz-executor.5/17761 is trying to acquire lock: (&mm->mmap_sem){++++}, at: [] __might_fault+0xe0/0x1d0 mm/memory.c:4583 but task is already holding lock: (&rp->fetch_lock){+.+.}, at: [] mon_bin_read+0x5d/0x5e0 drivers/usb/mon/mon_bin.c:813 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rp->fetch_lock){+.+.}: 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:2182 [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 -> #0 (&mm->mmap_sem){++++}: 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 __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_read+0x2fb/0x5e0 drivers/usb/mon/mon_bin.c:825 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3e2/0x5b0 fs/read_write.c:919 vfs_readv+0xd3/0x130 fs/read_write.c:981 do_readv+0x10a/0x2d0 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0x28/0x30 fs/read_write.c:1098 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(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by syz-executor.5/17761: #0: (&rp->fetch_lock){+.+.}, at: [] mon_bin_read+0x5d/0x5e0 drivers/usb/mon/mon_bin.c:813 stack backtrace: CPU: 0 PID: 17761 Comm: syz-executor.5 Not tainted 4.14.154 #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+0x142/0x197 lib/dump_stack.c:58 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 __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_read+0x2fb/0x5e0 drivers/usb/mon/mon_bin.c:825 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3e2/0x5b0 fs/read_write.c:919 vfs_readv+0xd3/0x130 fs/read_write.c:981 do_readv+0x10a/0x2d0 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0x28/0x30 fs/read_write.c:1098 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007f2a89d2cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000003 RSI: 0000000020000600 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2a89d2d6d4 R13: 00000000004c7ecd R14: 00000000004de160 R15: 00000000ffffffff kobject: 'wlan2' (ffff88803f0f5bf0): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim9/net/wlan2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'queues' (ffff8880916e8e48): kobject_add_internal: parent: 'wlan2', set: '' kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff8880916e8e48): kobject_uevent_env kobject: 'queues' (ffff8880916e8e48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'rx-0' (ffff8880a04cec10): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'rx-0' (ffff8880a04cec10): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff8880a04cec10): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim9/net/wlan2/queues/rx-0' kobject: 'tx-0' (ffff888097bf8e18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888097bf8e18): kobject_uevent_env kobject: 'tx-0' (ffff888097bf8e18): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim9/net/wlan2/queues/tx-0' kobject: 'tx-1' (ffff888097bf8f98): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-1' (ffff888097bf8f98): kobject_uevent_env kobject: 'tx-1' (ffff888097bf8f98): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim9/net/wlan2/queues/tx-1' kobject: 'tx-2' (ffff888097bf9118): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'tx-2' (ffff888097bf9118): kobject_uevent_env kobject: 'tx-2' (ffff888097bf9118): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim9/net/wlan2/queues/tx-2' kobject: 'tx-3' (ffff888097bf9298): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-3' (ffff888097bf9298): kobject_uevent_env kobject: 'tx-3' (ffff888097bf9298): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim9/net/wlan2/queues/tx-3' kobject: 'batman_adv' (ffff8880aa9c8280): kobject_add_internal: parent: 'wlan2', set: '' kobject: 'nr0' (ffff8880964fa430): kobject_add_internal: parent: 'net', set: 'devices' ieee80211 phy9: hwaddr 02:00:00:00:09:00 registered kobject: 'nr0' (ffff8880964fa430): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'nr0' (ffff8880964fa430): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (ffff88808bf0bb48): kobject_add_internal: parent: 'nr0', set: '' kobject: 'queues' (ffff88808bf0bb48): kobject_uevent_env kobject: 'queues' (ffff88808bf0bb48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880975c0c50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880975c0c50): kobject_uevent_env kobject: 'rx-0' (ffff8880975c0c50): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'tx-0' (ffff8880404409d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880404409d8): kobject_uevent_env kobject: 'tx-0' (ffff8880404409d8): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'batman_adv' (ffff888092c35d00): kobject_add_internal: parent: 'nr0', set: '' kobject: 'batman_adv' (ffff888092c35d00): kobject_uevent_env kobject: 'batman_adv' (ffff888092c35d00): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (ffff888092c35d00): kobject_cleanup, parent (null) kobject: 'batman_adv' (ffff888092c35d00): calling ktype release kobject: (ffff888092c35d00): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (ffff8880975c0c50): kobject_cleanup, parent ffff88808bf0bb48 kobject: 'rx-0' (ffff8880975c0c50): auto cleanup 'remove' event kobject: 'rx-0' (ffff8880975c0c50): kobject_uevent_env kobject: 'rx-0' (ffff8880975c0c50): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'rx-0' (ffff8880975c0c50): auto cleanup kobject_del kobject: 'rx-0' (ffff8880975c0c50): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (ffff8880404409d8): kobject_cleanup, parent ffff88808bf0bb48 kobject: 'tx-0' (ffff8880404409d8): auto cleanup 'remove' event kobject: 'tx-0' (ffff8880404409d8): kobject_uevent_env kobject: 'tx-0' (ffff8880404409d8): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'tx-0' (ffff8880404409d8): auto cleanup kobject_del kobject: 'tx-0' (ffff8880404409d8): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (ffff88808bf0bb48): kobject_cleanup, parent (null) kobject: 'queues' (ffff88808bf0bb48): calling ktype release kobject: 'queues' (ffff88808bf0bb48): kset_release kobject: 'queues': free name kobject: 'nr0' (ffff8880964fa430): kobject_uevent_env kobject: 'nr0' (ffff8880964fa430): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'nr0' (ffff8880964fa430): kobject_cleanup, parent (null) kobject: 'nr0' (ffff8880964fa430): calling ktype release kobject: 'nr0': free name kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'hwsim10' (ffff8880928fe450): kobject_add_internal: parent: 'mac80211_hwsim', set: 'devices' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'hwsim10' (ffff8880928fe450): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'hwsim10' (ffff8880928fe450): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10' kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'hwsim10' (ffff8880928fe450): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'hwsim10' (ffff8880928fe450): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10' kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'ieee80211' (ffff888096ca8080): kobject_add_internal: parent: 'hwsim10', set: '(null)' kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env gfs2: invalid mount option: hostdata˝rootcontext kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' gfs2: can't parse mount arguments kobject: 'phy10' (ffff8880844ca530): kobject_add_internal: parent: 'ieee80211', set: 'devices' kobject: 'phy10' (ffff8880844ca530): kobject_uevent_env kobject: 'phy10' (ffff8880844ca530): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/ieee80211/phy10' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'rfkill15' (ffff888099fb8ca8): kobject_add_internal: parent: 'phy10', set: 'devices' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'rfkill15' (ffff888099fb8ca8): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rfkill15' (ffff888099fb8ca8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/ieee80211/phy10/rfkill15' kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rfkill15' (ffff888099fb8ca8): kobject_uevent_env ieee80211 phy10: Selected rate control algorithm 'minstrel_ht' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rfkill15' (ffff888099fb8ca8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/ieee80211/phy10/rfkill15' kobject: 'net' (ffff8880944c8e00): kobject_add_internal: parent: 'hwsim10', set: '(null)' kobject: 'wlan3' (ffff8880547e5c30): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'wlan3' (ffff8880547e5c30): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'wlan3' (ffff8880547e5c30): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/net/wlan3' kobject: 'queues' (ffff8880a0f19a48): kobject_add_internal: parent: 'wlan3', set: '' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'queues' (ffff8880a0f19a48): kobject_uevent_env kobject: 'queues' (ffff8880a0f19a48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a8de9910): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff8880a8de9910): kobject_uevent_env kobject: 'rx-0' (ffff8880a8de9910): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/net/wlan3/queues/rx-0' kobject: 'tx-0' (ffff88808d1e1358): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808d1e1358): kobject_uevent_env kobject: 'tx-0' (ffff88808d1e1358): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/net/wlan3/queues/tx-0' kobject: 'tx-1' (ffff88808d1e14d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-1' (ffff88808d1e14d8): kobject_uevent_env kobject: 'tx-1' (ffff88808d1e14d8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/net/wlan3/queues/tx-1' kobject: 'tx-2' (ffff88808d1e1658): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-2' (ffff88808d1e1658): kobject_uevent_env kobject: 'tx-2' (ffff88808d1e1658): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/net/wlan3/queues/tx-2' kobject: 'tx-3' (ffff88808d1e17d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-3' (ffff88808d1e17d8): kobject_uevent_env kobject: 'tx-3' (ffff88808d1e17d8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim10/net/wlan3/queues/tx-3' kobject: 'batman_adv' (ffff88809f84f600): kobject_add_internal: parent: 'wlan3', set: '' ieee80211 phy10: hwaddr 02:00:00:00:0a:00 registered kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'hwsim11' (ffff8880956da050): kobject_add_internal: parent: 'mac80211_hwsim', set: 'devices' kobject: 'bond0.0' (ffff888099812930): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'hwsim11' (ffff8880956da050): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'bond0.0' (ffff888099812930): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'bond0.0' (ffff888099812930): fill_kobj_path: path = '/devices/virtual/net/bond0.0' kobject: 'hwsim11' (ffff8880956da050): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11' kobject: 'queues' (ffff8880a0442a48): kobject_add_internal: parent: 'bond0.0', set: '' kobject: 'hwsim11' (ffff8880956da050): kobject_uevent_env audit: type=1800 audit(1574095058.479:197): pid=17878 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed" comm="syz-executor.2" name="bus" dev="sda1" ino=16706 res=0 kobject: 'hwsim11' (ffff8880956da050): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'queues' (ffff8880a0442a48): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queues' (ffff8880a0442a48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88809f8ec250): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809f8ec250): kobject_uevent_env kobject: 'rx-0' (ffff88809f8ec250): fill_kobj_path: path = '/devices/virtual/net/bond0.0/queues/rx-0' kobject: 'tx-0' (ffff8880a9a4dad8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'tx-0' (ffff8880a9a4dad8): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff8880a9a4dad8): fill_kobj_path: path = '/devices/virtual/net/bond0.0/queues/tx-0' kobject: 'batman_adv' (ffff88808e01eb80): kobject_add_internal: parent: 'bond0.0', set: '' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. kobject: 'ieee80211' (ffff8880a80f5800): kobject_add_internal: parent: 'hwsim11', set: '(null)' kobject: 'phy11' (ffff888084b1a570): kobject_add_internal: parent: 'ieee80211', set: 'devices' kobject: 'phy11' (ffff888084b1a570): kobject_uevent_env kobject: 'phy11' (ffff888084b1a570): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/ieee80211/phy11' kobject: 'rfkill16' (ffff88804de3c668): kobject_add_internal: parent: 'phy11', set: 'devices' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. protocol 88fb is buggy, dev hsr_slave_1 kobject: 'rfkill16' (ffff88804de3c668): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rfkill16' (ffff88804de3c668): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/ieee80211/phy11/rfkill16' kobject: 'rfkill16' (ffff88804de3c668): kobject_uevent_env kobject: 'rfkill16' (ffff88804de3c668): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/ieee80211/phy11/rfkill16' ieee80211 phy11: Selected rate control algorithm 'minstrel_ht' kobject: 'net' (ffff88809794a400): kobject_add_internal: parent: 'hwsim11', set: '(null)' kobject: 'wlan4' (ffff8880503b5bf0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'wlan4' (ffff8880503b5bf0): kobject_uevent_env kobject: 'wlan4' (ffff8880503b5bf0): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/net/wlan4' kobject: 'queues' (ffff8880a3db6448): kobject_add_internal: parent: 'wlan4', set: '' kobject: 'queues' (ffff8880a3db6448): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (ffff8880a3db6448): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88809c287250): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809c287250): kobject_uevent_env kobject: 'rx-0' (ffff88809c287250): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/net/wlan4/queues/rx-0' kobject: 'tx-0' (ffff88804dc1ced8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88804dc1ced8): kobject_uevent_env kobject: 'tx-0' (ffff88804dc1ced8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/net/wlan4/queues/tx-0' kobject: 'tx-1' (ffff88804dc1d058): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-1' (ffff88804dc1d058): kobject_uevent_env kobject: 'tx-1' (ffff88804dc1d058): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/net/wlan4/queues/tx-1' kobject: 'tx-2' (ffff88804dc1d1d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-2' (ffff88804dc1d1d8): kobject_uevent_env kobject: 'tx-2' (ffff88804dc1d1d8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/net/wlan4/queues/tx-2' kobject: 'tx-3' (ffff88804dc1d358): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-3' (ffff88804dc1d358): kobject_uevent_env kobject: 'tx-3' (ffff88804dc1d358): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim11/net/wlan4/queues/tx-3' kobject: 'batman_adv' (ffff88808f422200): kobject_add_internal: parent: 'wlan4', set: '' ieee80211 phy11: hwaddr 02:00:00:00:0b:00 registered kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. audit: type=1400 audit(1574095059.489:198): avc: denied { set_context_mgr } for pid=17929 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=binder permissive=1 kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a4a64260): kobject_uevent_env kobject: 'loop3' (ffff8880a4a64260): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4a0e1e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a0e1e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b10be0): kobject_uevent_env kobject: 'loop5' (ffff8880a4b10be0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a8b502e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): kobject_uevent_env kobject: 'kvm' (ffff8880a6edd450): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880a8b502e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4ab8b60): kobject_uevent_env kobject: 'loop4' (ffff8880a4ab8b60): fill_kobj_path: path = '/devices/virtual/block/loop4'