INFO: task kcompactd0:29 blocked for more than 143 seconds.
      Not tainted 5.15.148-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0      state:D stack:25568 pid:   29 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 io_schedule+0x88/0x100 kernel/sched/core.c:8484
 wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356
 lock_page include/linux/pagemap.h:625 [inline]
 __unmap_and_move mm/migrate.c:990 [inline]
 unmap_and_move mm/migrate.c:1214 [inline]
 migrate_pages+0xbef/0x3470 mm/migrate.c:1491
 compact_zone+0x1ddb/0x4330 mm/compaction.c:2424
 kcompactd_do_work mm/compaction.c:2864 [inline]
 kcompactd+0x1239/0x2910 mm/compaction.c:2966
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/26:
 #0: ffffffff8c91f220 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3265:
 #0: ffff888024b2f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc9000209b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
8 locks held by kworker/u4:16/21767:
1 lock held by syz-executor.4/30710:
3 locks held by syz-executor.0/30877:
1 lock held by syz-executor.4/31009:
5 locks held by syz-executor.0/31249:
1 lock held by syz-executor.4/31391:
6 locks held by syz-executor.0/31565:
1 lock held by syz-executor.4/31717:
1 lock held by syz-executor.0/31896:
1 lock held by syz-executor.4/32052:
1 lock held by syz-executor.4/32609:
1 lock held by syz-executor.0/32727:
1 lock held by syz-executor.4/362:

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.15.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:295
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 154 Comm: kworker/u4:2 Not tainted 5.15.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: phy52 ieee80211_iface_work
RIP: 0010:unwind_next_frame+0x32/0x1fa0 arch/x86/kernel/unwind_orc.c:424
Code: 54 53 48 81 ec 80 00 00 00 49 89 ff 48 b8 00 00 00 00 00 fc ff df 48 8d 5f 48 48 89 d9 48 c1 e9 03 48 89 4c 24 28 80 3c 01 00 <74> 12 48 89 df e8 24 7c 91 00 48 b8 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc9000109f668 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc9000109f768 RCX: 1ffff92000213eed
RDX: dffffc0000000000 RSI: ffffffff8153dcb1 RDI: ffffc9000109f720
RBP: ffffc9000109f7b0 R08: 0000000000000006 R09: ffffc9000109f810
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012a78000
R13: ffffffff816dcab0 R14: ffffc9000109f800 R15: ffffc9000109f720
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c5a6ef9131 CR3: 000000007d524000 CR4: 00000000003506e0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kmem_cache_free+0x91/0x1f0 mm/slub.c:3515
 kfree_skb include/linux/skbuff.h:1123 [inline]
 ieee80211_iface_work+0x251/0xcc0 net/mac80211/iface.c:1497
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>