====================================================== WARNING: possible circular locking dependency detected 4.20.0-rc6+ #374 Not tainted ------------------------------------------------------ syz-executor0/4550 is trying to acquire lock: 000000004aa3b103 (&ovl_i_mutex_key[depth]#2){+.+.}, at: inode_lock include/linux/fs.h:757 [inline] 000000004aa3b103 (&ovl_i_mutex_key[depth]#2){+.+.}, at: process_measurement+0xc3e/0x1bf0 security/integrity/ima/ima_main.c:205 but task is already holding lock: 00000000d020e8bc (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1404 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+0x166/0x16f0 kernel/locking/mutex.c:1072 mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102 lock_trace+0x4c/0xe0 fs/proc/base.c:384 proc_pid_stack+0x1f1/0x430 fs/proc/base.c:434 proc_single_show+0x101/0x190 fs/proc/base.c:737 seq_read+0x4af/0x1150 fs/seq_file.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4a3/0x650 fs/read_write.c:924 vfs_readv+0x175/0x1c0 fs/read_write.c:986 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x539/0xb20 fs/splice.c:417 do_splice_to+0x12e/0x190 fs/splice.c:880 splice_direct_to_actor+0x31c/0x9d0 fs/splice.c:957 do_splice_direct+0x2d4/0x420 fs/splice.c:1066 do_sendfile+0x62a/0xe20 fs/read_write.c:1439 __do_sys_sendfile64 fs/read_write.c:1500 [inline] __se_sys_sendfile64 fs/read_write.c:1486 [inline] __x64_sys_sendfile64+0x1fd/0x250 fs/read_write.c:1486 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x166/0x16f0 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1150 fs/seq_file.c:161 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4a3/0x650 fs/read_write.c:924 vfs_readv+0x175/0x1c0 fs/read_write.c:986 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x539/0xb20 fs/splice.c:417 do_splice_to+0x12e/0x190 fs/splice.c:880 splice_direct_to_actor+0x31c/0x9d0 fs/splice.c:957 do_splice_direct+0x2d4/0x420 fs/splice.c:1066 do_sendfile+0x62a/0xe20 fs/read_write.c:1439 __do_sys_sendfile64 fs/read_write.c:1494 [inline] __se_sys_sendfile64 fs/read_write.c:1486 [inline] __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1486 do_syscall_64+0x1b9/0x820 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+0x214/0x370 fs/super.c:1387 sb_start_write include/linux/fs.h:1597 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:360 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_setattr+0x10b/0xaf0 fs/overlayfs/inode.c:30 notify_change+0xbde/0x1110 fs/attr.c:334 chmod_common+0x2a0/0x590 fs/open.c:541 ksys_fchmod+0xca/0x130 fs/open.c:560 __do_sys_fchmod fs/open.c:568 [inline] __se_sys_fchmod fs/open.c:566 [inline] __x64_sys_fchmod+0x57/0x80 fs/open.c:566 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_key[depth]#2){+.+.}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 down_write+0x8a/0x130 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:757 [inline] process_measurement+0xc3e/0x1bf0 security/integrity/ima/ima_main.c:205 ima_file_check+0xe5/0x130 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3422 [inline] path_openat+0x134a/0x5150 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_open_execat+0x221/0x8e0 fs/exec.c:853 open_exec+0x53/0x70 fs/exec.c:885 load_misc_binary+0xddd/0x145b fs/binfmt_misc.c:212 search_binary_handler+0x17d/0x570 fs/exec.c:1653 exec_binprm fs/exec.c:1695 [inline] __do_execve_file.isra.33+0x1661/0x25d0 fs/exec.c:1819 do_execveat_common fs/exec.c:1866 [inline] do_execveat fs/exec.c:1894 [inline] __do_sys_execveat fs/exec.c:1975 [inline] __se_sys_execveat fs/exec.c:1967 [inline] __x64_sys_execveat+0xed/0x130 fs/exec.c:1967 do_syscall_64+0x1b9/0x820 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_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_key[depth]#2); *** DEADLOCK *** 1 lock held by syz-executor0/4550: #0: 00000000d020e8bc (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1404 stack backtrace: CPU: 0 PID: 4550 Comm: syz-executor0 Not tainted 4.20.0-rc6+ #374 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+0x244/0x39d lib/dump_stack.c:113 print_circular_bug.isra.35.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1863 [inline] check_prevs_add kernel/locking/lockdep.c:1976 [inline] validate_chain kernel/locking/lockdep.c:2347 [inline] __lock_acquire+0x3399/0x4c20 kernel/locking/lockdep.c:3341 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 down_write+0x8a/0x130 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:757 [inline] process_measurement+0xc3e/0x1bf0 security/integrity/ima/ima_main.c:205 ima_file_check+0xe5/0x130 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3422 [inline] path_openat+0x134a/0x5150 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_open_execat+0x221/0x8e0 fs/exec.c:853 open_exec+0x53/0x70 fs/exec.c:885 load_misc_binary+0xddd/0x145b fs/binfmt_misc.c:212 search_binary_handler+0x17d/0x570 fs/exec.c:1653 exec_binprm fs/exec.c:1695 [inline] __do_execve_file.isra.33+0x1661/0x25d0 fs/exec.c:1819 do_execveat_common fs/exec.c:1866 [inline] do_execveat fs/exec.c:1894 [inline] __do_sys_execveat fs/exec.c:1975 [inline] __se_sys_execveat fs/exec.c:1967 [inline] __x64_sys_execveat+0xed/0x130 fs/exec.c:1967 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457669 Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f52cd259c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457669 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000072bfa0 R08: 0000000000001000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f52cd25a6d4 R13: 00000000004bddbf R14: 00000000004cd920 R15: 00000000ffffffff bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered listening state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered listening state device bridge0 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' device bridge0 left promiscuous mode kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered listening state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered listening state device bridge0 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env bridge0: port 2(bridge_slave_1) entered disabled state kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered listening state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered listening state device bridge0 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' ýÿ: port 2(bridge_slave_1) entered forwarding state ýÿ: topology change detected, propagating ýÿ: port 1(bridge_slave_0) entered forwarding state ýÿ: topology change detected, propagating IPv6: ADDRCONF(NETDEV_CHANGE): ýÿ: link becomes ready kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' cgroup: fork rejected by pids controller in /syz1 kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ba43f2d): kobject_uevent_env kobject: 'loop5' (000000003ba43f2d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000008a37eb26): kobject_uevent_env kobject: 'loop1' (000000008a37eb26): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000e33b2df5): kobject_uevent_env kobject: 'loop2' (00000000e33b2df5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000000b4ed2c1): kobject_uevent_env kobject: 'loop0' (000000000b4ed2c1): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop7' (00000000707b8b0a): kobject_uevent_env kobject: 'loop7' (00000000707b8b0a): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'rx-0' (0000000047b98317): kobject_cleanup, parent 00000000a0bd2368 kobject: 'rx-0' (0000000047b98317): auto cleanup 'remove' event kobject: 'rx-0' (0000000047b98317): kobject_uevent_env kobject: 'rx-0' (0000000047b98317): fill_kobj_path: path = '/devices/virtual/net/syz_tun/queues/rx-0' kobject: 'rx-0' (0000000047b98317): auto cleanup kobject_del kobject: 'rx-0' (0000000047b98317): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0000000073cdaee0): kobject_cleanup, parent 00000000a0bd2368 kobject: 'tx-0' (0000000073cdaee0): auto cleanup 'remove' event kobject: 'tx-0' (0000000073cdaee0): kobject_uevent_env kobject: 'tx-0' (0000000073cdaee0): fill_kobj_path: path = '/devices/virtual/net/syz_tun/queues/tx-0' kobject: 'tx-0' (0000000073cdaee0): auto cleanup kobject_del