------------[ cut here ]------------
WARNING: ./include/linux/memcontrol.h:381 at obj_cgroup_memcg include/linux/memcontrol.h:381 [inline], CPU#0: syz.8.2393/16239
WARNING: ./include/linux/memcontrol.h:381 at folio_memcg+0x1a8/0x310 include/linux/memcontrol.h:449, CPU#0: syz.8.2393/16239
Modules linked in:
CPU: 0 UID: 0 PID: 16239 Comm: syz.8.2393 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:obj_cgroup_memcg include/linux/memcontrol.h:381 [inline]
RIP: 0010:folio_memcg+0x1a8/0x310 include/linux/memcontrol.h:449
Code: 80 3c 28 00 74 08 4c 89 f7 e8 e4 af fb ff 4d 8b 36 4c 89 f0 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4a 57 e5 fe cc e8 a9 23 96 ff 90 <0f> 0b 90 eb c5 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c fe fe ff ff
RSP: 0018:ffffc9000c2aee08 EFLAGS: 00010246
RAX: ffffffff822ae9c7 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90020cc5000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: dffffc0000000000 R11: ffffed1006486ea9 R12: ffffea00009bee30
R13: dffffc0000000000 R14: ffff888028606800 R15: 0000000000000002
FS:  00007fc026fd56c0(0000) GS:ffff8881260c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555577e9e808 CR3: 00000000331e2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 get_deferred_split_queue mm/huge_memory.c:1084 [inline]
 __folio_split+0xb3/0x1af0 mm/huge_memory.c:3611
 madvise_cold_or_pageout_pte_range+0xbe5/0x1d00 mm/madvise.c:505
 walk_pmd_range mm/pagewalk.c:130 [inline]
 walk_pud_range mm/pagewalk.c:224 [inline]
 walk_p4d_range mm/pagewalk.c:262 [inline]
 walk_pgd_range+0xfe9/0x1d40 mm/pagewalk.c:303
 __walk_page_range+0x14c/0x710 mm/pagewalk.c:410
 walk_page_range_vma+0x393/0x440 mm/pagewalk.c:717
 madvise_pageout_page_range mm/madvise.c:624 [inline]
 madvise_pageout mm/madvise.c:649 [inline]
 madvise_vma_behavior+0x31ac/0x39c0 mm/madvise.c:1352
 madvise_walk_vmas+0x51c/0xa30 mm/madvise.c:1669
 madvise_do_behavior+0x38e/0x550 mm/madvise.c:1885
 do_madvise+0x1bc/0x270 mm/madvise.c:1978
 __do_sys_madvise mm/madvise.c:1987 [inline]
 __se_sys_madvise mm/madvise.c:1985 [inline]
 __x64_sys_madvise+0xa7/0xc0 mm/madvise.c:1985
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc028d8f749
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc026fd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fc028fe6180 RCX: 00007fc028d8f749
RDX: 0000000000000015 RSI: 7fffffffffffffff RDI: 0000200000000000
RBP: 00007fc028e13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc028fe6218 R14: 00007fc028fe6180 R15: 00007ffd21858078
 </TASK>