khugepaged+0xf5/0x560 mm/khugepaged.c:2431
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1458 [inline]
 free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1508
 free_unref_page_prepare mm/page_alloc.c:3386 [inline]
 free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3482
 io_ring_ctx_free+0x7ff/0xa59 io_uring/io_uring.c:2628
 io_ring_exit_work+0x6cd/0x738 io_uring/io_uring.c:2789
 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
------------[ cut here ]------------
WARNING: CPU: 0 PID: 23099 at mm/huge_memory.c:2465 __split_huge_page_tail+0x81c/0x1080 mm/huge_memory.c:2465
Modules linked in:
CPU: 0 PID: 23099 Comm: syz-executor.1 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:__split_huge_page_tail+0x81c/0x1080 mm/huge_memory.c:2465
Code: ff ff e8 97 80 a7 ff 48 ff cb e9 1a fd ff ff e8 8a 80 a7 ff 4c 89 ef 48 c7 c6 c0 9d 9b 8a e8 cb 1f e4 ff c6 05 e1 f5 18 0c 01 <0f> 0b e9 cb fb ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 29 f8 ff
RSP: 0018:ffffc9000ce9f528 EFLAGS: 00010046
RAX: d61d8322cff0d600 RBX: 1ffffd400059afc5 RCX: ffffffff8167b27b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e0dafa8
RBP: ffffea0002cd0008 R08: dffffc0000000000 R09: fffffbfff1c1b5f6
R10: fffffbfff1c1b5f6 R11: 1ffffffff1c1b5f5 R12: ffffea0002cd7e00
R13: ffffea0002cd0000 R14: 1ffffd400059a001 R15: ffffea0002cd7e28
FS:  00007f7cb2ab5700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556ae1708 CR3: 000000002f36d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __split_huge_page+0x403/0x1df0 mm/huge_memory.c:2527
 split_huge_page_to_list+0xf26/0x1bd0 mm/huge_memory.c:2756
 split_huge_page include/linux/huge_mm.h:188 [inline]
 deferred_split_scan+0x683/0x8b0 mm/huge_memory.c:2882
 do_shrink_slab+0x4e1/0xa00 mm/vmscan.c:842
 shrink_slab+0x1e6/0x340 mm/vmscan.c:1002
 drop_slab_node mm/vmscan.c:1037 [inline]
 drop_slab+0x185/0x2c0 mm/vmscan.c:1047
 drop_caches_sysctl_handler+0xb1/0x160 fs/drop_caches.c:66
 proc_sys_call_handler+0x576/0x890 fs/proc/proc_sysctl.c:604
 call_write_iter include/linux/fs.h:2191 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7dc/0xc50 fs/read_write.c:584
 ksys_write+0x177/0x2a0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7cb1c8b5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7cb2ab5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7cb1dabf80 RCX: 00007f7cb1c8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f7cb1ce67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd579099ef R14: 00007f7cb2ab5300 R15: 0000000000022000
 </TASK>