mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
cgroup: fork rejected by pids controller in /syz6
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
INFO: task syz-executor.5:21203 blocked for more than 143 seconds.
      Not tainted 5.10.123 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:28112 pid:21203 ppid:   291 flags:0x10000004
Call Trace:
 context_switch kernel/sched/core.c:3792 [inline]
 __schedule+0x848/0x1e80 kernel/sched/core.c:4541
 schedule+0xcb/0x270 kernel/sched/core.c:4619
 __io_uring_task_cancel+0x1ae/0x250 fs/io_uring.c:8891
 io_uring_task_cancel include/linux/io_uring.h:46 [inline]
 bprm_execve+0x114/0x1b00 fs/exec.c:1791
 do_execveat_common+0x765/0x8c0 fs/exec.c:1937
 do_execveat fs/exec.c:2018 [inline]
 __do_sys_execveat fs/exec.c:2094 [inline]
 __se_sys_execveat fs/exec.c:2086 [inline]
 __x64_sys_execveat+0xed/0x130 fs/exec.c:2086
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fe88645bb19
RSP: 002b:00007fe8839d1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142
RAX: ffffffffffffffda RBX: 00007fe88656ef60 RCX: 00007fe88645bb19
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007
RBP: 00007fe8864b5f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc63f076ef R14: 00007fe8839d1300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/23:
 #0: ffffffff84df7460 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6389
1 lock held by in:imklog/178:
 #0: ffff88800cf36ff0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:1003

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