------------[ cut here ]------------
WARNING: ./include/linux/pagemap.h:1130 at vma_flags_is_cow_mapping include/linux/mm.h:2315 [inline], CPU#0: syz.0.17/4910
WARNING: ./include/linux/pagemap.h:1130 at vma_is_cow_mapping include/linux/mm.h:2329 [inline], CPU#0: syz.0.17/4910
WARNING: ./include/linux/pagemap.h:1130 at linear_anon_page_index include/linux/pagemap.h:1130 [inline], CPU#0: syz.0.17/4910
WARNING: ./include/linux/pagemap.h:1130 at __folio_set_anon+0x240/0x298 mm/rmap.c:1491, CPU#0: syz.0.17/4910
Modules linked in:
CPU: 0 UID: 0 PID: 4910 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : linear_anon_page_index include/linux/mm.h:2315 [inline]
pc : __folio_set_anon+0x240/0x298 mm/rmap.c:1491
lr : vma_flags_is_cow_mapping include/linux/mm.h:2315 [inline]
lr : vma_is_cow_mapping include/linux/mm.h:2329 [inline]
lr : linear_anon_page_index include/linux/pagemap.h:1130 [inline]
lr : __folio_set_anon+0x240/0x298 mm/rmap.c:1491
sp : ffff800094796de0
x29: ffff800094796df0 x28: 0000000000020000 x27: 1fffe0001ba9b91c
x26: ffff0000dd4dc8e0 x25: 0000000000020000 x24: dfff800000000000
x23: 0000000020000000 x22: 0000000000000000 x21: 00000000200020d1
x20: ffff0000dd4dc8c0 x19: fffffdffc3b58000 x18: 00000000ffffffff
x17: 0000000000000003 x16: ffff800088b97000 x15: ffff80008a849000
x14: 000000000062ed2d x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000000 x10: 000000000000003d x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff800080c16020 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080ab2d0c
x2 : 0000000000000000 x1 : ffff0000cec10000 x0 : 0000000000000000
Call trace:
 vma_flags_is_cow_mapping include/linux/mm.h:2315 [inline] (P)
 vma_is_cow_mapping include/linux/mm.h:2329 [inline] (P)
 linear_anon_page_index include/linux/pagemap.h:1130 [inline] (P)
 __folio_set_anon+0x240/0x298 mm/rmap.c:1491 (P)
 folio_add_new_anon_rmap+0x1a8/0x10ac mm/rmap.c:1663
 map_anon_folio_pmd_nopf+0xfc/0x160 mm/huge_memory.c:1365
 collapse_huge_page mm/khugepaged.c:1438 [inline]
 mthp_collapse mm/khugepaged.c:1532 [inline]
 collapse_scan_pmd mm/khugepaged.c:1781 [inline]
 collapse_single_pmd+0x21e0/0x3748 mm/khugepaged.c:2797
 madvise_collapse+0x2a4/0x6f4 mm/khugepaged.c:3231
 madvise_vma_behavior+0x3e8/0x339c mm/madvise.c:1372
 madvise_walk_vmas+0x4c8/0x9bc mm/madvise.c:1721
 madvise_do_behavior+0x5f0/0x7c0 mm/madvise.c:1916
 do_madvise+0x28c/0x2f0 mm/madvise.c:2014
 __do_sys_madvise mm/madvise.c:2023 [inline]
 __se_sys_madvise mm/madvise.c:2021 [inline]
 __arm64_sys_madvise+0xac/0xc8 mm/madvise.c:2021
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:758
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:777
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:590
irq event stamp: 2852
hardirqs last  enabled at (2851): [<ffff8000869b7264>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline]
hardirqs last  enabled at (2851): [<ffff8000869b7264>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:221
hardirqs last disabled at (2852): [<ffff800086991a8c>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445
softirqs last  enabled at (2538): [<ffff80008013c050>] local_bh_enable include/linux/bottom_half.h:33 [inline]
softirqs last  enabled at (2538): [<ffff80008013c050>] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline]
softirqs last  enabled at (2538): [<ffff80008013c050>] fpsimd_restore_current_state+0x39c/0x9c8 arch/arm64/kernel/fpsimd.c:1797
softirqs last disabled at (2536): [<ffff80008013bcf8>] local_bh_disable include/linux/bottom_half.h:20 [inline]
softirqs last disabled at (2536): [<ffff80008013bcf8>] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline]
softirqs last disabled at (2536): [<ffff80008013bcf8>] fpsimd_restore_current_state+0x44/0x9c8 arch/arm64/kernel/fpsimd.c:1790
---[ end trace 0000000000000000 ]---