------------[ cut here ]------------
WARNING: ./include/linux/memcontrol.h:381 at obj_cgroup_memcg include/linux/memcontrol.h:381 [inline], CPU#0: syz.4.495/8847
WARNING: ./include/linux/memcontrol.h:381 at folio_memcg include/linux/memcontrol.h:449 [inline], CPU#0: syz.4.495/8847
WARNING: ./include/linux/memcontrol.h:381 at folio_memcg+0x2de/0x380 include/linux/memcontrol.h:446, CPU#0: syz.4.495/8847
Modules linked in:
CPU: 0 UID: 0 PID: 8847 Comm: syz.4.495 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 include/linux/memcontrol.h:449 [inline]
RIP: 0010:folio_memcg+0x2de/0x380 include/linux/memcontrol.h:446
Code: 38 ef 94 ff be ff ff ff ff 48 c7 c7 48 6d 42 8e e8 d7 ec 3a 09 31 ff 89 c3 89 c6 e8 cc e9 94 ff 85 db 75 87 e8 13 ef 94 ff 90 <0f> 0b 90 e9 79 ff ff ff e8 05 ef 94 ff 48 c7 c6 00 70 9e 8b 48 89
RSP: 0018:ffffc9000416f150 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8228a954
RDX: ffff888026ee5b80 RSI: ffffffff8228a95d RDI: 0000000000000005
RBP: ffff88802d29bf00 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 000000004c7f681c R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: ffffea0001116000
FS:  00007fa42c68b6c0(0000) GS:ffff888124967000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001b40 CR3: 000000007980e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 get_deferred_split_queue mm/huge_memory.c:1084 [inline]
 __folio_split+0xb2/0x4860 mm/huge_memory.c:3611
 madvise_cold_or_pageout_pte_range+0x1385/0x20d0 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+0xcdc/0x1f40 mm/pagewalk.c:303
 __walk_page_range+0x163/0x820 mm/pagewalk.c:410
 walk_page_range_vma+0x2c7/0xa20 mm/pagewalk.c:717
 madvise_pageout_page_range mm/madvise.c:624 [inline]
 madvise_pageout+0x257/0x540 mm/madvise.c:649
 madvise_vma_behavior+0xb14/0x2d00 mm/madvise.c:1352
 madvise_walk_vmas+0x31f/0x9c0 mm/madvise.c:1669
 madvise_do_behavior+0x1e2/0x530 mm/madvise.c:1885
 do_madvise+0x176/0x240 mm/madvise.c:1978
 __do_sys_madvise mm/madvise.c:1987 [inline]
 __se_sys_madvise mm/madvise.c:1985 [inline]
 __x64_sys_madvise+0xa9/0x110 mm/madvise.c:1985
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa42b78f7c9
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:00007fa42c68b038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fa42b9e5fa0 RCX: 00007fa42b78f7c9
RDX: 0000000000000015 RSI: ffffffffffff0001 RDI: 0000000000000000
RBP: 00007fa42b813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa42b9e6038 R14: 00007fa42b9e5fa0 R15: 00007fffb7873cc8
 </TASK>