netlink: 'syz-executor3': attribute type 16 has an invalid length. ====================================================== WARNING: possible circular locking dependency detected 4.19.0-rc5+ #116 Not tainted ------------------------------------------------------ kobject: 'loop1' (00000000ac637145): kobject_uevent_env syz-executor3/10828 is trying to acquire lock: 00000000114fd9d6 ((wq_completion)bond_dev->name){+.+.}, at: flush_workqueue+0x2db/0x1e10 kernel/workqueue.c:2652 kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' but task is already holding lock: 000000007ef8b560 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] 000000007ef8b560 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x40e/0xc20 net/core/rtnetlink.c:4712 which lock already depends on the new lock. kobject: 'loop4' (00000000cf367aef): kobject_uevent_env the existing dependency chain (in reverse order) is: kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' -> #2 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 bond_netdev_notify drivers/net/bonding/bond_main.c:1303 [inline] bond_netdev_notify_work+0x44/0xd0 drivers/net/bonding/bond_main.c:1313 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 -> #1 ((work_completion)(&(&nnw->work)->work)){+.+.}: process_one_work+0xc0a/0x1b90 kernel/workqueue.c:2129 kobject: 'loop1' (00000000ac637145): kobject_uevent_env worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 -> #0 kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' ((wq_completion)bond_dev->name){+.+.}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 flush_workqueue+0x30a/0x1e10 kernel/workqueue.c:2655 drain_workqueue+0x2a9/0x640 kernel/workqueue.c:2820 destroy_workqueue+0xc6/0x9c0 kernel/workqueue.c:4155 __alloc_workqueue_key+0xed8/0x1170 kernel/workqueue.c:4138 bond_init+0x274/0x970 drivers/net/bonding/bond_main.c:4727 register_netdevice+0x332/0x10f0 net/core/dev.c:8409 kobject: 'loop2' (000000005f384c03): kobject_uevent_env bond_newlink+0x49/0xa0 drivers/net/bonding/bond_netlink.c:453 rtnl_newlink+0xec6/0x1d40 net/core/rtnetlink.c:3103 rtnetlink_rcv_msg+0x46a/0xc20 net/core/rtnetlink.c:4715 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4733 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 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: (wq_completion)bond_dev->name --> (work_completion)(&(&nnw->work)->work) --> rtnl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock((work_completion)(&(&nnw->work)->work)); lock(rtnl_mutex); lock((wq_completion)bond_dev->name); *** DEADLOCK *** 1 lock held by syz-executor3/10828: #0: 000000007ef8b560 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 000000007ef8b560 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x40e/0xc20 net/core/rtnetlink.c:4712 stack backtrace: CPU: 1 PID: 10828 Comm: syz-executor3 Not tainted 4.19.0-rc5+ #116 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+0x1c4/0x2b4 lib/dump_stack.c:113 print_circular_bug.isra.33.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x33e4/0x4ec0 kernel/locking/lockdep.c:3411 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 flush_workqueue+0x30a/0x1e10 kernel/workqueue.c:2655 drain_workqueue+0x2a9/0x640 kernel/workqueue.c:2820 destroy_workqueue+0xc6/0x9c0 kernel/workqueue.c:4155 kobject: 'loop2' (000000005f384c03): kobject_uevent_env __alloc_workqueue_key+0xed8/0x1170 kernel/workqueue.c:4138 kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' bond_init+0x274/0x970 drivers/net/bonding/bond_main.c:4727 register_netdevice+0x332/0x10f0 net/core/dev.c:8409 bond_newlink+0x49/0xa0 drivers/net/bonding/bond_netlink.c:453 rtnl_newlink+0xec6/0x1d40 net/core/rtnetlink.c:3103 rtnetlink_rcv_msg+0x46a/0xc20 net/core/rtnetlink.c:4715 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4733 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc5b7829c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000006 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc5b782a6d4 R13: 00000000004c38b9 R14: 00000000004d5700 R15: 00000000ffffffff kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'veth2' (000000003159c9d9): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth2' (000000003159c9d9): kobject_uevent_env kobject: 'veth2' (000000003159c9d9): fill_kobj_path: path = '/devices/virtual/net/veth2' kobject: 'queues' (0000000078aa4633): kobject_add_internal: parent: 'veth2', set: '' kobject: 'queues' (0000000078aa4633): kobject_uevent_env kobject: 'queues' (0000000078aa4633): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000db165994): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000db165994): kobject_uevent_env kobject: 'rx-0' (00000000db165994): fill_kobj_path: path = '/devices/virtual/net/veth2/queues/rx-0' kobject: 'tx-0' (00000000e8222591): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000e8222591): kobject_uevent_env kobject: 'tx-0' (00000000e8222591): fill_kobj_path: path = '/devices/virtual/net/veth2/queues/tx-0' kobject: 'veth3' (0000000049f28e49): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth3' (0000000049f28e49): kobject_uevent_env kobject: 'veth3' (0000000049f28e49): fill_kobj_path: path = '/devices/virtual/net/veth3' kobject: 'queues' (000000006da81ed8): kobject_add_internal: parent: 'veth3', set: '' kobject: 'queues' (000000006da81ed8): kobject_uevent_env kobject: 'queues' (000000006da81ed8): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (0000000075495d43): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (0000000075495d43): kobject_uevent_env kobject: 'rx-0' (0000000075495d43): fill_kobj_path: path = '/devices/virtual/net/veth3/queues/rx-0' kobject: 'tx-0' (0000000038b552ea): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (0000000038b552ea): kobject_uevent_env kobject: 'tx-0' (0000000038b552ea): fill_kobj_path: path = '/devices/virtual/net/veth3/queues/tx-0' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000005f384c03): kobject_uevent_env bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' device bridge0 left promiscuous mode kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000005f384c03): kobject_uevent_env device bridge0 left promiscuous mode kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered blocking state kobject: 'loop2' (000000005f384c03): kobject_uevent_env bridge0: port 2(bridge_slave_1) entered forwarding state kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop4' (00000000cf367aef): kobject_uevent_env device bridge0 left promiscuous mode kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' bridge0: port 2(bridge_slave_1) entered disabled state kobject: 'loop2' (000000005f384c03): kobject_uevent_env bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env device bridge0 entered promiscuous mode kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' device bridge0 left promiscuous mode kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode kobject: 'loop1' (00000000ac637145): kobject_uevent_env bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000005f384c03): kobject_uevent_env bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env device bridge0 left promiscuous mode kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' device bridge0 left promiscuous mode kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state device bridge0 entered promiscuous mode kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 left promiscuous mode CPU: 0 PID: 11374 Comm: syz-executor2 Not tainted 4.19.0-rc5+ #116 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+0x1c4/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2be/0x730 mm/slab.c:3552 sock_alloc_inode+0x1d/0x260 net/socket.c:244 alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x71/0x1a0 fs/inode.c:903 sock_alloc+0x41/0x270 net/socket.c:547 __sock_create+0x175/0x930 net/socket.c:1241 sock_create_kern+0x3b/0x50 net/socket.c:1323 rfcomm_l2sock_create+0x39/0x140 net/bluetooth/rfcomm/core.c:203 rfcomm_session_create net/bluetooth/rfcomm/core.c:738 [inline] __rfcomm_dlc_open net/bluetooth/rfcomm/core.c:388 [inline] rfcomm_dlc_open+0x666/0xfe0 net/bluetooth/rfcomm/core.c:431 rfcomm_sock_connect+0x38b/0x4d0 net/bluetooth/rfcomm/sock.c:416 __sys_connect+0x37d/0x4c0 net/socket.c:1664 __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fedb90adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fedb90adc90 RCX: 0000000000457579 RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 kobject: 'loop1' (00000000ac637145): kobject_uevent_env R10: 0000000000000000 R11: 0000000000000246 R12: 00007fedb90ae6d4 R13: 00000000004bda15 R14: 00000000004cc4a8 R15: 0000000000000003 socket: no more sockets kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state kobject: 'loop4' (00000000cf367aef): kobject_uevent_env bridge0: port 1(bridge_slave_0) entered blocking state kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' bridge0: port 1(bridge_slave_0) entered forwarding state CPU: 1 PID: 11376 Comm: syz-executor0 Not tainted 4.19.0-rc5+ #116 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+0x1c4/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 device bridge0 entered promiscuous mode __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2be/0x730 mm/slab.c:3552 sock_alloc_inode+0x1d/0x260 net/socket.c:244 alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x71/0x1a0 fs/inode.c:903 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env sock_alloc+0x41/0x270 net/socket.c:547 __sock_create+0x175/0x930 net/socket.c:1241 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env sock_create_kern+0x3b/0x50 net/socket.c:1323 rfcomm_l2sock_create+0x39/0x140 net/bluetooth/rfcomm/core.c:203 rfcomm_session_create net/bluetooth/rfcomm/core.c:738 [inline] __rfcomm_dlc_open net/bluetooth/rfcomm/core.c:388 [inline] rfcomm_dlc_open+0x666/0xfe0 net/bluetooth/rfcomm/core.c:431 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env rfcomm_sock_connect+0x38b/0x4d0 net/bluetooth/rfcomm/sock.c:416 __sys_connect+0x37d/0x4c0 net/socket.c:1664 kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000ac637145): kobject_uevent_env kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0e16318c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f0e16318c90 RCX: 0000000000457579 RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0e163196d4 R13: 00000000004bda15 R14: 00000000004cc4a8 R15: 0000000000000003 socket: no more sockets kobject: 'loop2' (000000005f384c03): kobject_uevent_env kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env CPU: 0 PID: 11441 Comm: syz-executor2 Not tainted 4.19.0-rc5+ #116 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2d7/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:513 [inline] sock_alloc_inode+0x66/0x260 net/socket.c:247 kobject: 'loop4' (00000000cf367aef): kobject_uevent_env alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x71/0x1a0 fs/inode.c:903 sock_alloc+0x41/0x270 net/socket.c:547 __sock_create+0x175/0x930 net/socket.c:1241 kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' sock_create_kern+0x3b/0x50 net/socket.c:1323 rfcomm_l2sock_create+0x39/0x140 net/bluetooth/rfcomm/core.c:203 rfcomm_session_create net/bluetooth/rfcomm/core.c:738 [inline] __rfcomm_dlc_open net/bluetooth/rfcomm/core.c:388 [inline] rfcomm_dlc_open+0x666/0xfe0 net/bluetooth/rfcomm/core.c:431 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env rfcomm_sock_connect+0x38b/0x4d0 net/bluetooth/rfcomm/sock.c:416 __sys_connect+0x37d/0x4c0 net/socket.c:1664 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'loop5' (0000000031a3361d): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' RSP: 002b:00007fedb90adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fedb90adc90 RCX: 0000000000457579 RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fedb90ae6d4 R13: 00000000004bda15 R14: 00000000004cc4a8 R15: 0000000000000003 kobject: 'loop1' (00000000ac637145): kobject_uevent_env socket: no more sockets kobject: 'loop1' (00000000ac637145): fill_kobj_path: path = '/devices/virtual/block/loop1' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11473 Comm: syz-executor2 Not tainted 4.19.0-rc5+ #116 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+0x1c4/0x2b4 lib/dump_stack.c:113 kobject: 'loop2' (000000005f384c03): kobject_uevent_env fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5' __should_failslab+0x124/0x180 mm/failslab.c:32 kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x63/0x760 mm/slab.c:3727 kmalloc include/linux/slab.h:518 [inline] sk_prot_alloc+0x1b0/0x2e0 net/core/sock.c:1468 kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' sk_alloc+0x10d/0x1690 net/core/sock.c:1522 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env l2cap_sock_alloc.constprop.7+0x98/0x2e0 net/bluetooth/l2cap_sock.c:1590 l2cap_sock_create+0x133/0x200 net/bluetooth/l2cap_sock.c:1636 kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' bt_sock_create+0x16b/0x2d0 net/bluetooth/af_bluetooth.c:130 __sock_create+0x536/0x930 net/socket.c:1277 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env sock_create_kern+0x3b/0x50 net/socket.c:1323 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' rfcomm_l2sock_create+0x39/0x140 net/bluetooth/rfcomm/core.c:203 rfcomm_session_create net/bluetooth/rfcomm/core.c:738 [inline] __rfcomm_dlc_open net/bluetooth/rfcomm/core.c:388 [inline] rfcomm_dlc_open+0x666/0xfe0 net/bluetooth/rfcomm/core.c:431 kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env rfcomm_sock_connect+0x38b/0x4d0 net/bluetooth/rfcomm/sock.c:416 kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' __sys_connect+0x37d/0x4c0 net/socket.c:1664 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'loop3' (00000000e167f8e6): kobject_uevent_env RSP: 002b:00007fedb90adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fedb90adc90 RCX: 0000000000457579 RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fedb90ae6d4 R13: 00000000004bda15 R14: 00000000004cc4a8 R15: 0000000000000003 kobject: 'loop3' (00000000e167f8e6): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000cf367aef): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11519 Comm: syz-executor2 Not tainted 4.19.0-rc5+ #116 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+0x1c4/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 kobject: 'loop4' (00000000cf367aef): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000005f384c03): kobject_uevent_env __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x4b/0x750 mm/slab.c:3618 kobject: 'loop2' (000000005f384c03): fill_kobj_path: path = '/devices/virtual/block/loop2' kmalloc include/linux/slab.h:513 [inline] kzalloc include/linux/slab.h:707 [inline] apparmor_sk_alloc_security+0x64/0xe0 security/apparmor/lsm.c:769 security_sk_alloc+0x60/0xc0 security/security.c:1466 sk_prot_alloc+0x1cb/0x2e0 net/core/sock.c:1471 sk_alloc+0x10d/0x1690 net/core/sock.c:1522 kobject: 'loop0' (00000000ded35bfd): kobject_uevent_env kobject: 'loop0' (00000000ded35bfd): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000031a3361d): kobject_uevent_env kobject: 'loop5' (0000000031a3361d): fill_kobj_path: path = '/devices/virtual/block/loop5'