audit: type=1400 audit(1569668493.111:276): avc: denied { map } for pid=1145 comm="syz-executor.2" path="/dev/usbmon0" dev="devtmpfs" ino=14500 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 4.14.146 #0 Not tainted ------------------------------------------------------ syz-executor.2/1159 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:3991 __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 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:3991 __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); lock(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); *** DEADLOCK *** 1 lock held by syz-executor.2/1159: #0: (&mm->mmap_sem){++++}, at: [] __mm_populate+0x1e5/0x2c0 mm/gup.c:1259 stack backtrace: CPU: 1 PID: 1159 Comm: syz-executor.2 Not tainted 4.14.146 #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:3991 __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 RIP: 0033:0x459a29 RSP: 002b:00007fe7723d9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459a29 RDX: 0000000001000002 RSI: 0000000000400300 RDI: 0000000020a05000 RBP: 000000000075c070 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000008012 R11: 0000000000000246 R12: 00007fe7723da6d4 R13: 00000000004c5f27 R14: 00000000004dab78 R15: 00000000ffffffff kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' rpcbind: RPC call returned error 22 kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env rpcbind: RPC call returned error 22 kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 144 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env netem: invalid attributes len -18 netem: change failed kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 144 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env netem: invalid attributes len -18 netem: change failed kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 144 bytes leftover after parsing attributes in process `syz-executor.0'. netem: invalid attributes len -18 kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env netem: change failed kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 144 bytes leftover after parsing attributes in process `syz-executor.0'. netem: invalid attributes len -18 kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env netem: change failed kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' PM: Basic memory bitmaps created PM: Basic memory bitmaps freed PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' PM: Basic memory bitmaps created PM: Basic memory bitmaps freed kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env PM: Marking nosave pages: [mem 0x00000000-0x00000fff] kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' PM: Basic memory bitmaps created PM: Basic memory bitmaps freed kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] EXT4-fs (loop3): VFS: Found ext4 filesystem with unknown checksum algorithm. PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs (loop3): VFS: Found ext4 filesystem with unknown checksum algorithm. PM: Basic memory bitmaps created kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env PM: Basic memory bitmaps freed kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' device lo left promiscuous mode kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env EXT4-fs (loop3): VFS: Found ext4 filesystem with unknown checksum algorithm. PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env PM: Basic memory bitmaps created kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env EXT4-fs (loop3): VFS: Found ext4 filesystem with unknown checksum algorithm. kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' PM: Basic memory bitmaps freed kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' audit: type=1804 audit(1569668498.401:277): pid=1472 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir494672667/syzkaller.ltDGIe/159/file0" dev="sda1" ino=17095 res=1 kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env audit: type=1804 audit(1569668498.451:278): pid=1476 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir494672667/syzkaller.ltDGIe/159/file0" dev="sda1" ino=17095 res=1 kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' audit: type=1804 audit(1569668498.541:279): pid=1483 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir494672667/syzkaller.ltDGIe/160/file0" dev="sda1" ino=17097 res=1 kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' audit: type=1804 audit(1569668498.681:280): pid=1496 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir494672667/syzkaller.ltDGIe/161/file0" dev="sda1" ino=17794 res=1 kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env audit: type=1804 audit(1569668498.791:281): pid=1507 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir494672667/syzkaller.ltDGIe/162/file0" dev="sda1" ino=17790 res=1 kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:50' (ffff88805dd2f610): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:50' (ffff88805dd2f610): kobject_uevent_env kobject: '0:50' (ffff88805dd2f610): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:50' (ffff88805dd2f610): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:50' (ffff88805dd2f610): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:50' (ffff88805dd2f610): kobject_cleanup, parent (null) kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:50' (ffff88805dd2f610): calling ktype release kobject: '0:50': free name kobject: '0:62' (ffff88806a9d4210): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: '0:50' (ffff888062664950): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:62' (ffff88806a9d4210): kobject_uevent_env kobject: '0:63' (ffff888061ab0550): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:65' (ffff88805da2a650): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: '0:62' (ffff88806a9d4210): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:50' (ffff888062664950): kobject_uevent_env kobject: '0:65' (ffff88805da2a650): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: '0:63' (ffff888061ab0550): kobject_uevent_env kobject: '0:65' (ffff88805da2a650): fill_kobj_path: path = '/devices/virtual/bdi/0:65' kobject: '0:50' (ffff888062664950): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:63' (ffff888061ab0550): fill_kobj_path: path = '/devices/virtual/bdi/0:63' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: '0:62' (ffff88806a9d4210): kobject_uevent_env kobject: '0:63' (ffff888061ab0550): kobject_uevent_env kobject: '0:65' (ffff88805da2a650): kobject_uevent_env kobject: '0:65' (ffff88805da2a650): fill_kobj_path: path = '/devices/virtual/bdi/0:65' kobject: '0:62' (ffff88806a9d4210): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: '0:50' (ffff888062664950): kobject_uevent_env kobject: '0:63' (ffff888061ab0550): fill_kobj_path: path = '/devices/virtual/bdi/0:63' kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: '0:65' (ffff88805da2a650): kobject_cleanup, parent (null) kobject: '0:62' (ffff88806a9d4210): kobject_cleanup, parent (null) kobject: '0:62' (ffff88806a9d4210): calling ktype release kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: '0:63' (ffff888061ab0550): kobject_cleanup, parent (null) kobject: '0:50' (ffff888062664950): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:65' (ffff88805da2a650): calling ktype release kobject: '0:63' (ffff888061ab0550): calling ktype release kobject: '0:62': free name kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: '0:65': free name kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:63': free name kobject: '0:50' (ffff888062664950): kobject_cleanup, parent (null) kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: '0:50' (ffff888062664950): calling ktype release kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:50': free name kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: '0:50' (ffff8880694b0050): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:50' (ffff8880694b0050): kobject_uevent_env kobject: '0:50' (ffff8880694b0050): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:62' (ffff88806a93f5d0): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:63' (ffff8880a9adce10): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:62' (ffff88806a93f5d0): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:63' (ffff8880a9adce10): kobject_uevent_env kobject: '0:50' (ffff8880694b0050): kobject_uevent_env kobject: '0:50' (ffff8880694b0050): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:63' (ffff8880a9adce10): fill_kobj_path: path = '/devices/virtual/bdi/0:63' kobject: '0:62' (ffff88806a93f5d0): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: '0:50' (ffff8880694b0050): kobject_cleanup, parent (null) kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:50' (ffff8880694b0050): calling ktype release kobject: '0:65' (ffff8880808cb290): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:50': free name kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:65' (ffff8880808cb290): kobject_uevent_env kobject: '0:62' (ffff88806a93f5d0): kobject_uevent_env kobject: '0:50' (ffff8880a9577610): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:62' (ffff88806a93f5d0): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: '0:62' (ffff88806a93f5d0): kobject_cleanup, parent (null) kobject: '0:63' (ffff8880a9adce10): kobject_uevent_env kobject: '0:62' (ffff88806a93f5d0): calling ktype release kobject: '0:63' (ffff8880a9adce10): fill_kobj_path: path = '/devices/virtual/bdi/0:63' kobject: '0:62': free name kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: '0:65' (ffff8880808cb290): fill_kobj_path: path = '/devices/virtual/bdi/0:65' kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:50' (ffff8880a9577610): kobject_uevent_env kobject: '0:63' (ffff8880a9adce10): kobject_cleanup, parent (null) kobject: '0:50' (ffff8880a9577610): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:63' (ffff8880a9adce10): calling ktype release kobject: '0:63': free name kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:65' (ffff8880808cb290): kobject_uevent_env kobject: '0:65' (ffff8880808cb290): fill_kobj_path: path = '/devices/virtual/bdi/0:65' kobject: '0:65' (ffff8880808cb290): kobject_cleanup, parent (null) kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:65' (ffff8880808cb290): calling ktype release kobject: '0:62' (ffff8880539836d0): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:65': free name kobject: '0:62' (ffff8880539836d0): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: '0:50' (ffff8880a9577610): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:50' (ffff8880a9577610): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:62' (ffff8880539836d0): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: '0:63' (ffff888088890c50): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:63' (ffff888088890c50): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: '0:63' (ffff888088890c50): fill_kobj_path: path = '/devices/virtual/bdi/0:63' kobject: '0:50' (ffff8880a9577610): kobject_cleanup, parent (null) kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:50' (ffff8880a9577610): calling ktype release kobject: '0:50': free name kobject: 'loop2' (ffff8880a49551e0): kobject_uevent_env kobject: 'loop2' (ffff8880a49551e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:62' (ffff8880539836d0): kobject_uevent_env kobject: '0:62' (ffff8880539836d0): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: '0:63' (ffff888088890c50): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: '0:62' (ffff8880539836d0): kobject_cleanup, parent (null) kobject: '0:63' (ffff888088890c50): fill_kobj_path: path = '/devices/virtual/bdi/0:63' kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:50' (ffff88808d1652d0): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:63' (ffff888088890c50): kobject_cleanup, parent (null) kobject: '0:62' (ffff8880539836d0): calling ktype release kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: '0:50' (ffff88808d1652d0): kobject_uevent_env kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:62': free name kobject: '0:63' (ffff888088890c50): calling ktype release kobject: '0:50' (ffff88808d1652d0): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: 'loop0' (ffff88806aea16e0): kobject_uevent_env kobject: '0:63': free name kobject: 'loop0' (ffff88806aea16e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a17320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a17320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: '0:50' (ffff88808d1652d0): kobject_uevent_env kobject: '0:62' (ffff88805b21a3d0): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:50' (ffff88808d1652d0): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: 'loop3' (ffff8880a498a120): kobject_uevent_env kobject: '0:62' (ffff88805b21a3d0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a498a120): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:62' (ffff88805b21a3d0): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: '0:50' (ffff88808d1652d0): kobject_cleanup, parent (null) kobject: 'kvm' (ffff8880a6e41490): kobject_uevent_env kobject: 'kvm' (ffff8880a6e41490): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a49c6a20): kobject_uevent_env kobject: '0:50' (ffff88808d1652d0): calling ktype release kobject: '0:50': free name kobject: 'loop4' (ffff8880a49c6a20): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env kobject: 'loop1' (ffff8880a4908f60): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:62' (ffff88805b21a3d0): kobject_uevent_env kobject: '0:62' (ffff88805b21a3d0): fill_kobj_path: path = '/devices/virtual/bdi/0:62' kobject: 'loop1' (ffff8880a4908f60): kobject_uevent_env