INFO: task syz-executor.3:3481 blocked for more than 143 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:24968 pid:3481 ppid:3671 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fab1aa8b639 RSP: 002b:00007fab1b87c168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fab1ababf80 RCX: 00007fab1aa8b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fab1aae6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdde461c3f R14: 00007fab1b87c300 R15: 0000000000022000 INFO: task syz-executor.1:3511 blocked for more than 144 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:28904 pid:3511 ppid:3685 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1baa48b639 RSP: 002b:00007f1bab1c2168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1baa5ac050 RCX: 00007f1baa48b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1baa4e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc064339f R14: 00007f1bab1c2300 R15: 0000000000022000 INFO: task syz-executor.1:3520 blocked for more than 144 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:28904 pid:3520 ppid:3685 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1baa48b639 RSP: 002b:00007f1bab1a1168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1baa5ac120 RCX: 00007f1baa48b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1baa4e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc064339f R14: 00007f1bab1a1300 R15: 0000000000022000 INFO: task syz-executor.1:3526 blocked for more than 145 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27336 pid:3526 ppid:3685 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1baa48b639 RSP: 002b:00007f1bab180168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1baa5ac1f0 RCX: 00007f1baa48b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1baa4e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc064339f R14: 00007f1bab180300 R15: 0000000000022000 INFO: task syz-executor.1:3529 blocked for more than 145 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26248 pid:3529 ppid:3685 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1baa48b639 RSP: 002b:00007f1bab15f168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1baa5ac2c0 RCX: 00007f1baa48b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1baa4e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc064339f R14: 00007f1bab15f300 R15: 0000000000022000 INFO: task syz-executor.1:3536 blocked for more than 146 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27336 pid:3536 ppid:3685 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1baa48b639 RSP: 002b:00007f1bab13e168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1baa5ac390 RCX: 00007f1baa48b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1baa4e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc064339f R14: 00007f1bab13e300 R15: 0000000000022000 INFO: task syz-executor.4:3503 blocked for more than 147 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26328 pid:3503 ppid:3680 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc855c8b639 RSP: 002b:00007fc8569d0168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fc855dabf80 RCX: 00007fc855c8b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fc855ce6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe537b5e5f R14: 00007fc8569d0300 R15: 0000000000022000 INFO: task syz-executor.4:3510 blocked for more than 147 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28616 pid:3510 ppid:3680 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc855c8b639 RSP: 002b:00007fc8569af168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fc855dac050 RCX: 00007fc855c8b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fc855ce6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe537b5e5f R14: 00007fc8569af300 R15: 0000000000022000 INFO: task syz-executor.4:3517 blocked for more than 149 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26408 pid:3517 ppid:3680 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc855c8b639 RSP: 002b:00007fc85698e168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fc855dac120 RCX: 00007fc855c8b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fc855ce6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe537b5e5f R14: 00007fc85698e300 R15: 0000000000022000 INFO: task syz-executor.4:3525 blocked for more than 150 seconds. Not tainted 6.1.0-rc5-syzkaller-00320-gb6e7fdfd6f6a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26248 pid:3525 ppid:3680 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0x8fc/0xda0 kernel/sched/core.c:6503 schedule+0xcb/0x190 kernel/sched/core.c:6579 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x46/0x60 kernel/sched/completion.c:138 f2fs_issue_checkpoint+0x30a/0x4f0 iterate_supers+0x137/0x1f0 fs/super.c:724 ksys_sync+0xd5/0x1c0 fs/sync.c:104 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc855c8b639 RSP: 002b:00007fc85696d168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fc855dac1f0 RCX: 00007fc855c8b639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fc855ce6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe537b5e5f R14: 00007fc85696d300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d323ff0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d3247f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/28: #0: ffffffff8d323e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 1 lock held by dhcpcd/3214: #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x75d/0xe90 net/core/rtnetlink.c:6088 2 locks held by getty/3311: #0: ffff888017c12098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177 5 locks held by kworker/u4:10/7477: 5 locks held by kworker/u4:38/11073: #0: ffff8880129c3138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262 #1: ffffc90009537d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264 #2: ffffffff8e471c50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf0/0xc50 net/core/net_namespace.c:563 #3: ffff888072f672f8 (&devlink->lock_key#8){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x13e/0x2f0 net/core/devlink.c:12509 #4: ffffffff8d3293b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #4: ffffffff8d3293b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a6/0x890 kernel/rcu/tree_exp.h:946 2 locks held by kworker/u4:1/13800: 3 locks held by kworker/0:0/26432: #0: ffff888028316d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262 #1: ffffc900157e7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264 #2: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd8/0x16e0 net/ipv6/addrconf.c:4083 1 lock held by kworker/0:3/28937: 1 lock held by syz-executor.3/3481: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.1/3511: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.1/3520: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.1/3526: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.1/3529: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.1/3536: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.4/3503: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.4/3510: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.4/3517: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.4/3525: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.0/3516: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.0/3524: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.0/3527: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.2/3507: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.2/3508: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 2 locks held by f2fs_ckpt-7:1/3513: 1 lock held by syz-executor.5/3531: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.5/3538: #0: ffff88808e85c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.5/3540: #0: ffff88808e85c0e0 (&type->s_umount_key #76 ){++++}-{3:3} , at: iterate_supers+0xb0/0x1f0 fs/super.c:722 1 lock held by syz-executor.5/3543: #0: ffff88808e85c0e0 ( &type->s_umount_key #76){++++}-{3:3} , at: iterate_supers+0xb0/0x1f0 fs/super.c:722 2 locks held by kworker/0:5/3616: #0: ffff888012866538 ( (wq_completion)rcu_gp ){+.+.}-{0:0} , at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262 #1: ffffc90015947d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264 1 lock held by syz-executor.1/3624: #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x75d/0xe90 net/core/rtnetlink.c:6088 5 locks held by syz-executor.0/3640: #0: ffff88807f1d2460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x275/0xbb0 fs/read_write.c:580 #1: ffff888079fb6488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1f3/0x500 fs/kernfs/file.c:321 #2: ffff8881479ed2c0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x217/0x500 fs/kernfs/file.c:322 #3: ffffffff8ddf7ee8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xf8/0x480 drivers/net/netdevsim/bus.c:209 #4: ffff88809248c0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #4: ffff88809248c0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline] #4: ffff88809248c0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x8a0 drivers/base/dd.c:1272 1 lock held by syz-executor.5/3648: #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x75d/0xe90 net/core/rtnetlink.c:6088 2 locks held by syz-executor.4/3649: #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x75d/0xe90 net/core/rtnetlink.c:6088 #1: ffffffff8d3293b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] #1: ffffffff8d3293b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46f/0x890 kernel/rcu/tree_exp.h:946 1 lock held by syz-executor.2/3654: #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x75d/0xe90 net/core/rtnetlink.c:6088 1 lock held by syz-executor.3/3657: #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x75d/0xe90 net/core/rtnetlink.c:6088 3 locks held by kworker/1:5/3658: #0: ffff888028316d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262 #1: ffffc9000343fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264 #2: ffffffff8e47df88 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd8/0x16e0 net/ipv6/addrconf.c:4083 =============================================