INFO: task syz-executor.4:5960 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-next-20240607-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26320 pid:5960 tgid:5958 ppid:5109 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5192 [inline] __schedule+0x17e8/0x4a20 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 cgrp_css_online+0x90/0x2f0 net/core/netprio_cgroup.c:157 online_css+0xbb/0x260 kernel/cgroup/cgroup.c:5514 css_create kernel/cgroup/cgroup.c:5585 [inline] cgroup_apply_control_enable+0x7d7/0xaf0 kernel/cgroup/cgroup.c:3232 cgroup_mkdir+0xa52/0xd30 kernel/cgroup/cgroup.c:5778 kernfs_iop_mkdir+0x253/0x3f0 fs/kernfs/dir.c:1246 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4142 do_mkdirat+0x264/0x3a0 fs/namei.c:4165 __do_sys_mkdirat fs/namei.c:4180 [inline] __se_sys_mkdirat fs/namei.c:4178 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4178 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: 0033:0x7f121687cf69 RSP: 002b:00007f12163ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f12169b4050 RCX: 00007f121687cf69 RDX: 00000000000001ff RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f12168da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f12169b4050 R15: 00007fffbb3a1ad8 INFO: task syz-executor.4:5961 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-next-20240607-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27352 pid:5961 tgid:5958 ppid:5109 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5192 [inline] __schedule+0x17e8/0x4a20 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 inode_lock_shared include/linux/fs.h:805 [inline] lookup_slow+0x45/0x70 fs/namei.c:1715 walk_component+0x2e1/0x410 fs/namei.c:2011 lookup_last fs/namei.c:2480 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2504 do_o_path+0x95/0x230 fs/namei.c:3789 path_openat+0x2adf/0x3280 fs/namei.c:3811 do_filp_open+0x235/0x490 fs/namei.c:3845 do_sys_openat2+0x13e/0x1d0 fs/open.c:1409 do_sys_open fs/open.c:1424 [inline] __do_sys_openat fs/open.c:1440 [inline] __se_sys_openat fs/open.c:1435 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1435 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: 0033:0x7f121687cf69 RSP: 002b:00007f12163de0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f12169b4120 RCX: 00007f121687cf69 RDX: 0000000000200002 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f12168da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f12169b4120 R15: 00007fffbb3a1ad8 INFO: task syz-executor.2:5978 blocked for more than 144 seconds. Not tainted 6.10.0-rc2-next-20240607-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:25120 pid:5978 tgid:5975 ppid:5108 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5192 [inline] __schedule+0x17e8/0x4a20 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