INFO: task syz-executor:7198 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21888 pid:7198  tgid:7198  ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 device_del+0xa9/0x8e0
 device_unregister+0x20/0xc0
 del_device_store+0x2aa/0x360
 kernfs_fop_write_iter+0x378/0x4f0
 vfs_write+0x54b/0xa90
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5e6178d3df
RSP: 002b:00007ffd686ce190 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f5e6178d3df
RDX: 0000000000000001 RSI: 00007ffd686ce1e0 RDI: 0000000000000005
RBP: 00007f5e61811d8d R08: 0000000000000000 R09: 00007ffd686cdfe7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffd686ce1e0 R14: 00007f5e624e4620 R15: 0000000000000003
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
 #0: ffff8880219d1148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
