INFO: task kworker/0:1:9 blocked for more than 143 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:21592 pid:9 tgid:9 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580 kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778 kernfs_create_dir_ns+0xd9/0x120 fs/kernfs/dir.c:1071 internal_create_group+0x4f5/0x11d0 fs/sysfs/group.c:167 dpm_sysfs_add+0x69/0x280 drivers/base/power/sysfs.c:702 device_add+0x5bc/0xbf0 drivers/base/core.c:3639 usb_create_ep_devs+0x130/0x230 drivers/usb/core/endpoint.c:169 usb_new_device+0x1168/0x19a0 drivers/usb/core/hub.c:2681 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2d6a/0x5150 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task udevd:4545 blocked for more than 143 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:21632 pid:4545 tgid:4545 ppid:1 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 __wait_on_freeing_inode+0x2a4/0x3f0 fs/inode.c:2300 find_inode_fast+0x2a0/0x460 fs/inode.c:957 iget_locked+0xab/0x820 fs/inode.c:1320 kernfs_get_inode+0x51/0x790 fs/kernfs/inode.c:251 kernfs_iop_lookup+0x266/0x390 fs/kernfs/dir.c:1214 __lookup_slow+0x28c/0x3f0 fs/namei.c:1718 lookup_slow+0x53/0x70 fs/namei.c:1735 walk_component+0x2e1/0x410 fs/namei.c:2039 lookup_last fs/namei.c:2542 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2566 filename_lookup+0x256/0x610 fs/namei.c:2595 do_readlinkat+0xf0/0x3a0 fs/stat.c:537 __do_sys_readlink fs/stat.c:574 [inline] __se_sys_readlink fs/stat.c:571 [inline] __x64_sys_readlink+0x7f/0x90 fs/stat.c:571 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7832517d47 RSP: 002b:00007ffe07854cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000059 RAX: ffffffffffffffda RBX: 00007ffe07854d08 RCX: 00007f7832517d47 RDX: 0000000000000400 RSI: 00007ffe07854d08 RDI: 00007ffe078551e8 RBP: 0000000000000400 R08: 00005585821e2d54 R09: 0000000000000000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007ffe078551e8 R13: 00007ffe07855158 R14: 00005585821bc910 R15: 0000000000000000 INFO: task modprobe:11571 blocked for more than 144 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:modprobe state:D stack:23680 pid:11571 tgid:11571 ppid:10921 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 lookup_fast+0x1f4/0x4a0 walk_component fs/namei.c:2035 [inline] link_path_walk+0x672/0xea0 fs/namei.c:2404 path_lookupat+0xa9/0x450 fs/namei.c:2565 filename_lookup+0x256/0x610 fs/namei.c:2595 user_path_at+0x3a/0x60 fs/namei.c:3002 user_statfs+0xd6/0x460 fs/statfs.c:103 __do_sys_statfs fs/statfs.c:195 [inline] __se_sys_statfs fs/statfs.c:192 [inline] __x64_sys_statfs+0xe8/0x1a0 fs/statfs.c:192 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4febe4868a RSP: 002b:00007ffdc9492798 EFLAGS: 00000246 ORIG_RAX: 0000000000000089 RAX: ffffffffffffffda RBX: 00007f4febd6d4f8 RCX: 00007f4febe4868a RDX: 00007f4febd6f19c RSI: 00007ffdc9492810 RDI: 00007f4febd65723 RBP: 00007f4febd65723 R08: 0000000000000000 R09: 000000000000000d R10: 00007ffdc94925c0 R11: 0000000000000246 R12: 00007ffdc9492810 R13: 00007ffdc9492988 R14: 00007ffdc94929b0 R15: 0000000000000000 INFO: task syz.3.2149:11586 blocked for more than 144 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.2149 state:D stack:27392 pid:11586 tgid:11579 ppid:5094 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 lookup_fast+0x1f4/0x4a0 walk_component fs/namei.c:2035 [inline] link_path_walk+0x672/0xea0 fs/namei.c:2404 path_openat+0x25d/0x3470 fs/namei.c:3882 do_filp_open+0x235/0x490 fs/namei.c:3913 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_openat fs/open.c:1447 [inline] __se_sys_openat fs/open.c:1442 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1442 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efd29975b59 RSP: 002b:00007efd2a68a048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007efd29b06038 RCX: 00007efd29975b59 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007efd299e4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efd29b06038 R15: 00007ffe6691f438 INFO: task sed:11580 blocked for more than 144 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:sed state:D stack:23680 pid:11580 tgid:11580 ppid:11578 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 lookup_fast+0x1f4/0x4a0 walk_component fs/namei.c:2035 [inline] link_path_walk+0x672/0xea0 fs/namei.c:2404 path_lookupat+0xa9/0x450 fs/namei.c:2565 filename_lookup+0x256/0x610 fs/namei.c:2595 user_path_at+0x3a/0x60 fs/namei.c:3002 user_statfs+0xd6/0x460 fs/statfs.c:103 __do_sys_statfs fs/statfs.c:195 [inline] __se_sys_statfs fs/statfs.c:192 [inline] __x64_sys_statfs+0xe8/0x1a0 fs/statfs.c:192 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f40fc4c368a RSP: 002b:00007fffad337928 EFLAGS: 00000246 ORIG_RAX: 0000000000000089 RAX: ffffffffffffffda RBX: 00007f40fc3e84f8 RCX: 00007f40fc4c368a RDX: 00007f40fc3ea19c RSI: 00007fffad3379a0 RDI: 00007f40fc3e0723 RBP: 00007f40fc3e0723 R08: 0000000000000000 R09: 000000000000000d R10: 00007fffad337750 R11: 0000000000000246 R12: 00007fffad3379a0 R13: 00007fffad337b18 R14: 00007fffad337b40 R15: 0000000000000000 INFO: task modprobe:11582 blocked for more than 145 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:modprobe state:D stack:23680 pid:11582 tgid:11582 ppid:1110 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 lookup_fast+0x1f4/0x4a0 walk_component fs/namei.c:2035 [inline] link_path_walk+0x672/0xea0 fs/namei.c:2404 path_lookupat+0xa9/0x450 fs/namei.c:2565 filename_lookup+0x256/0x610 fs/namei.c:2595 user_path_at+0x3a/0x60 fs/namei.c:3002 user_statfs+0xd6/0x460 fs/statfs.c:103 __do_sys_statfs fs/statfs.c:195 [inline] __se_sys_statfs fs/statfs.c:192 [inline] __x64_sys_statfs+0xe8/0x1a0 fs/statfs.c:192 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f66d2e5e68a RSP: 002b:00007fffc142b518 EFLAGS: 00000246 ORIG_RAX: 0000000000000089 RAX: ffffffffffffffda RBX: 00007f66d2d834f8 RCX: 00007f66d2e5e68a RDX: 00007f66d2d8519c RSI: 00007fffc142b590 RDI: 00007f66d2d7b723 RBP: 00007f66d2d7b723 R08: 0000000000000000 R09: 000000000000000d R10: 00007fffc142b340 R11: 0000000000000246 R12: 00007fffc142b590 R13: 00007fffc142b708 R14: 00007fffc142b730 R15: 0000000000000000 INFO: task syz.4.2150:11585 blocked for more than 145 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.2150 state:D stack:23800 pid:11585 tgid:11583 ppid:11022 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580 kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778 kernfs_create_dir_ns+0xd9/0x120 fs/kernfs/dir.c:1071 sysfs_create_dir_ns+0x189/0x3a0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:73 [inline] kobject_add_internal+0x435/0x8d0 lib/kobject.c:240 kobject_add_varg lib/kobject.c:374 [inline] kobject_add+0x152/0x220 lib/kobject.c:426 device_add+0x4e5/0xbf0 drivers/base/core.c:3617 netdev_register_kobject+0x17e/0x320 net/core/net-sysfs.c:2136 register_netdevice+0x12c5/0x1b00 net/core/dev.c:10435 tun_set_iff+0x85f/0xe80 drivers/net/tun.c:2858 __tun_chr_ioctl+0x866/0x2400 drivers/net/tun.c:3127 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ee0175b59 RSP: 002b:00007f9ee0f15048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9ee0305f60 RCX: 00007f9ee0175b59 RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000005 RBP: 00007f9ee01e4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9ee0305f60 R15: 00007ffeb6f01318 INFO: task syz.4.2150:11587 blocked for more than 145 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.2150 state:D stack:27392 pid:11587 tgid:11583 ppid:11022 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 tun_set_queue drivers/net/tun.c:2988 [inline] __tun_chr_ioctl+0x41c/0x2400 drivers/net/tun.c:3110 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ee0175b59 RSP: 002b:00007f9ee0ef4048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9ee0306038 RCX: 00007f9ee0175b59 RDX: 0000000020000000 RSI: 00000000400454d9 RDI: 0000000000000005 RBP: 00007f9ee01e4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f9ee0306038 R15: 00007ffeb6f01318 INFO: task syz.2.2154:11598 blocked for more than 145 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2154 state:D stack:25984 pid:11598 tgid:11597 ppid:10971 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 nl80211_pre_doit+0x5f/0x8b0 net/wireless/nl80211.c:16547 genl_family_rcv_msg_doit net/netlink/genetlink.c:1110 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xaaa/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd7f5f75b59 RSP: 002b:00007fd7f6c8c048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd7f6105f60 RCX: 00007fd7f5f75b59 RDX: 0000000000000000 RSI: 00000000200006c0 RDI: 0000000000000004 RBP: 00007fd7f5fe4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fd7f6105f60 R15: 00007ffe6adf83c8 INFO: task syz.2.2154:11603 blocked for more than 146 seconds. Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2154 state:D stack:25984 pid:11603 tgid:11597 ppid:10971 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 __tipc_nl_compat_doit net/tipc/netlink_compat.c:358 [inline] tipc_nl_compat_doit+0x21e/0x610 net/tipc/netlink_compat.c:393 tipc_nl_compat_recv+0xe25/0x14c0 net/tipc/netlink_compat.c:1321 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd7f5f75b59 RSP: 002b:00007fd7f59ff048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd7f6106110 RCX: 00007fd7f5f75b59 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 000000000000000a RBP: 00007fd7f5fe4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fd7f6106110 R15: 00007ffe6adf83c8 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 2 locks held by kworker/0:0/8: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900000d7d00 (autoload_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900000d7d00 (autoload_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 4 locks held by kworker/0:1/9: #0: ffff88801ce89548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88801ce89548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900000e7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900000e7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff8880231e6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #2: ffff8880231e6190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849 #3: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778 1 lock held by khungtaskd/30: #0: ffffffff8e336e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:327 [inline] #0: ffffffff8e336e60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:839 [inline] #0: ffffffff8e336e60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6620 2 locks held by kworker/u8:6/1110: #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000437fd00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc9000437fd00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 3 locks held by kworker/u8:7/1274: #0: ffff88802a46a148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88802a46a148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90004887d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90004887d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4734 2 locks held by kworker/u8:9/2833: #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900095dfd00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900095dfd00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 2 locks held by udevd/4545: #0: ffff888064d06480 (&type->i_mutex_dir_key#4){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:809 [inline] #0: ffff888064d06480 (&type->i_mutex_dir_key#4){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734 #1: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_lookup+0x93/0x390 fs/kernfs/dir.c:1200 2 locks held by getty/4846: #0: ffff88802ad4e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 1 lock held by syz-executor/5094: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 5 locks held by kworker/u9:5/5103: #0: ffff88801f33e148 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88801f33e148 ((wq_completion)hci0){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003727d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90003727d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888063cbcd80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff888063cbc078 (&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_find_and_get_ns+0x71/0x110 fs/kernfs/dir.c:918 5 locks held by kworker/u9:7/5107: #0: ffff88802e98f948 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88802e98f948 ((wq_completion)hci2){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003757d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90003757d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888052210d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff888052210078 (&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_find_and_get_ns+0x71/0x110 fs/kernfs/dir.c:918 3 locks held by kworker/0:4/5143: #0: ffff888015081948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015081948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000420fd00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc9000420fd00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x99/0xfd0 net/wireless/reg.c:2480 1 lock held by syz-executor/5890: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 2 locks held by kworker/u8:1/10921: #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000c43fd00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc9000c43fd00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 1 lock held by syz-executor/10971: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz-executor/10981: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz-executor/11022: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by modprobe/11571: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz.3.2149/11586: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by sed/11580: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by modprobe/11582: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 2 locks held by syz.4.2150/11585: #0: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl+0x48f/0x2400 drivers/net/tun.c:3117 #1: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778 1 lock held by syz.4.2150/11587: #0: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: tun_set_queue drivers/net/tun.c:2988 [inline] #0: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl+0x41c/0x2400 drivers/net/tun.c:3110 2 locks held by syz.2.2154/11598: #0: ffffffff8f654850 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x5f/0x8b0 net/wireless/nl80211.c:16547 3 locks held by syz.2.2154/11603: #0: ffffffff8f654850 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f654708 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f654708 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f654708 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 #2: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: __tipc_nl_compat_doit net/tipc/netlink_compat.c:358 [inline] #2: ffffffff8f5ef148 (rtnl_mutex){+.+.}-{3:3}, at: tipc_nl_compat_doit+0x21e/0x610 net/tipc/netlink_compat.c:393 1 lock held by modprobe/11607: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz.1.2157/11609: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778 1 lock held by syz.0.2159/11616: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778 1 lock held by syz-executor/11617: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz-executor/11618: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz-executor/11619: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz-executor/11620: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 1 lock held by syz-executor/11621: #0: ffff888015edc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2932 Comm: kworker/u8:12 Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:check_preemption_disabled+0x4/0x120 lib/smp_processor_id.c:13 Code: 8c 48 c7 c6 e0 95 1f 8c eb 1c 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 <41> 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 RSP: 0018:ffffc90009acfab0 EFLAGS: 00000282 RAX: 0000000000000000 RBX: ffff888029828cc0 RCX: ffff88802bc43c00 RDX: ffff88802bc43c00 RSI: ffffffff8c1f95e0 RDI: ffffffff8c1f95a0 RBP: 0000000000000001 R08: ffffffff8b50ba41 R09: 1ffffffff25f82c0 R10: dffffc0000000000 R11: fffffbfff25f82c1 R12: ffff888029828cc0 R13: 1ffff110053052fc R14: ffff88806754d808 R15: ffffffff8b50bed0 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f79c54a70e8 CR3: 000000000e134000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:726 rcu_read_unlock include/linux/rcupdate.h:868 [inline] batadv_nc_process_nc_paths+0x26a/0x3a0 net/batman-adv/network-coding.c:699 batadv_nc_worker+0x52c/0x610 net/batman-adv/network-coding.c:735 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244