====================================================== WARNING: possible circular locking dependency detected 5.0.0-rc3+ #37 Not tainted ------------------------------------------------------ syz-executor0/28871 is trying to acquire lock: 000000003535b3c0 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: inode_lock_shared include/linux/fs.h:767 [inline] 000000003535b3c0 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: lookup_slow+0x4a/0x80 fs/namei.c:1687 but task is already holding lock: 000000004fc6fc91 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] 000000004fc6fc91 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x45d/0x2700 fs/exec.c:1750 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072 mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102 kobject: 'loop0' (00000000760095a9): kobject_uevent_env lock_trace+0x4a/0xe0 fs/proc/base.c:384 proc_pid_personality+0x1c/0xd0 fs/proc/base.c:2899 proc_single_show+0xf6/0x180 fs/proc/base.c:739 seq_read+0x4db/0x1130 fs/seq_file.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:921 vfs_readv+0x175/0x1c0 fs/read_write.c:983 do_readv+0x11a/0x300 fs/read_write.c:1016 __do_sys_readv fs/read_write.c:1103 [inline] __se_sys_readv fs/read_write.c:1100 [inline] __x64_sys_readv+0x75/0xb0 fs/read_write.c:1100 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1130 fs/seq_file.c:161 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:921 vfs_readv+0x175/0x1c0 fs/read_write.c:983 kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x50c/0xac0 fs/splice.c:417 kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' do_splice_to+0x12a/0x190 fs/splice.c:880 splice_direct_to_actor+0x31b/0x9d0 fs/splice.c:957 do_splice_direct+0x2c7/0x420 fs/splice.c:1066 do_sendfile+0x61a/0xe60 fs/read_write.c:1436 __do_sys_sendfile64 fs/read_write.c:1491 [inline] __se_sys_sendfile64 fs/read_write.c:1483 [inline] __x64_sys_sendfile64+0x15a/0x240 fs/read_write.c:1483 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#3){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x20b/0x360 fs/super.c:1389 sb_start_write include/linux/fs.h:1602 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:357 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_fix_origin fs/overlayfs/namei.c:789 [inline] ovl_lookup+0x1bea/0x29b0 fs/overlayfs/namei.c:907 __lookup_slow+0x2cd/0x560 fs/namei.c:1671 lookup_slow+0x58/0x80 fs/namei.c:1688 mountpoint_last fs/namei.c:2665 [inline] path_mountpoint+0x6bb/0x21a0 fs/namei.c:2695 filename_mountpoint+0x258/0x490 fs/namei.c:2717 kobject: 'loop4' (000000003f14a10d): kobject_uevent_env user_path_mountpoint_at+0x3a/0x50 fs/namei.c:2747 ksys_umount+0x198/0x1340 fs/namespace.c:1643 __do_sys_umount fs/namespace.c:1669 [inline] __se_sys_umount fs/namespace.c:1667 [inline] __x64_sys_umount+0x54/0x80 fs/namespace.c:1667 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]#2){++++}: lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 down_read+0x8d/0x120 kernel/locking/rwsem.c:24 kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' inode_lock_shared include/linux/fs.h:767 [inline] lookup_slow+0x4a/0x80 fs/namei.c:1687 walk_component+0x8e5/0x26a0 fs/namei.c:1810 link_path_walk.part.0+0xa57/0x1550 fs/namei.c:2141 link_path_walk fs/namei.c:2072 [inline] path_openat+0x222/0x5650 fs/namei.c:3533 do_filp_open+0x26f/0x370 fs/namei.c:3564 do_open_execat+0x20e/0x930 fs/exec.c:856 __do_execve_file.isra.0+0x1966/0x2700 fs/exec.c:1758 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &ovl_i_mutex_dir_key[depth]#2 --> &p->lock --> &sig->cred_guard_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sig->cred_guard_mutex); lock(&p->lock); lock(&sig->cred_guard_mutex); lock(&ovl_i_mutex_dir_key[depth]#2); *** DEADLOCK *** 1 lock held by syz-executor0/28871: #0: 000000004fc6fc91 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] #0: 000000004fc6fc91 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x45d/0x2700 fs/exec.c:1750 stack backtrace: CPU: 0 PID: 28871 Comm: syz-executor0 Not tainted 5.0.0-rc3+ #37 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2350 [inline] __lock_acquire+0x3014/0x4a30 kernel/locking/lockdep.c:3338 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 down_read+0x8d/0x120 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:767 [inline] lookup_slow+0x4a/0x80 fs/namei.c:1687 walk_component+0x8e5/0x26a0 fs/namei.c:1810 link_path_walk.part.0+0xa57/0x1550 fs/namei.c:2141 link_path_walk fs/namei.c:2072 [inline] path_openat+0x222/0x5650 fs/namei.c:3533 do_filp_open+0x26f/0x370 fs/namei.c:3564 do_open_execat+0x20e/0x930 fs/exec.c:856 __do_execve_file.isra.0+0x1966/0x2700 fs/exec.c:1758 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa07501dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa07501e6d4 R13: 00000000004be6af R14: 00000000004ced68 R15: 00000000ffffffff kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 device lo entered promiscuous mode overlayfs: filesystem on './file0' not supported as upperdir kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 device lo left promiscuous mode kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' device lo entered promiscuous mode kobject: 'loop0' (00000000760095a9): kobject_uevent_env device lo left promiscuous mode kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo left promiscuous mode kobject: 'loop1' (000000008ef28780): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' device lo left promiscuous mode kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' device lo entered promiscuous mode netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop0' (00000000760095a9): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' device lo left promiscuous mode kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env device lo left promiscuous mode kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop7' (0000000075aaec68): kobject_uevent_env kobject: 'loop7' (0000000075aaec68): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'hwsim2' (000000008a348cc8): kobject_add_internal: parent: 'mac80211_hwsim', set: 'devices' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'hwsim2' (000000008a348cc8): kobject_uevent_env kobject: 'hwsim2' (000000008a348cc8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'hwsim2' (000000008a348cc8): kobject_uevent_env kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'hwsim2' (000000008a348cc8): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2' kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'ieee80211' (000000001a27475c): kobject_add_internal: parent: 'hwsim2', set: '(null)' kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'â' (000000005a83fbe2): kobject_add_internal: parent: 'ieee80211', set: 'devices' kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'â' (000000005a83fbe2): kobject_uevent_env kobject: 'â' (000000005a83fbe2): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2/ieee80211/â' kobject: 'loop5' (0000000003cf9650): kobject_uevent_env kobject: 'loop5' (0000000003cf9650): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rfkill6' (00000000bd2acdc7): kobject_add_internal: parent: 'â', set: 'devices' kobject: 'loop2' (0000000079fc4192): kobject_uevent_env kobject: 'loop2' (0000000079fc4192): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rfkill6' (00000000bd2acdc7): kobject_uevent_env kobject: 'loop1' (000000008ef28780): kobject_uevent_env kobject: 'rfkill6' (00000000bd2acdc7): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2/ieee80211/â/rfkill6' kobject: 'loop1' (000000008ef28780): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000760095a9): kobject_uevent_env kobject: 'loop0' (00000000760095a9): fill_kobj_path: path = '/devices/virtual/block/loop0' ieee80211 â: Selected rate control algorithm 'minstrel_ht' kobject: 'loop3' (0000000024d191f9): kobject_uevent_env kobject: 'loop3' (0000000024d191f9): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'net' (00000000ccb18e55): kobject_add_internal: parent: 'hwsim2', set: '(null)' kobject: 'loop4' (000000003f14a10d): kobject_uevent_env kobject: 'wlan0' (0000000098ac34c5): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop4' (000000003f14a10d): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'wlan0' (0000000098ac34c5): kobject_uevent_env kobject: 'wlan0' (0000000098ac34c5): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2/net/wlan0'