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BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/core.c:416 [inline]
BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x19e8/0x1cf0 drivers/acpi/nfit/core.c:459
Read of size 4 at addr ffffc900039b3038 by task syz.3.385/7476

CPU: 3 UID: 0 PID: 7476 Comm: syz.3.385 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 cmd_to_func drivers/acpi/nfit/core.c:416 [inline]
 acpi_nfit_ctl+0x19e8/0x1cf0 drivers/acpi/nfit/core.c:459
 __nd_ioctl drivers/nvdimm/bus.c:1186 [inline]
 nd_ioctl+0x13bc/0x18c0 drivers/nvdimm/bus.c:1264
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fee8b77e819
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:00007fee8c4a2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fee8b935fa0 RCX: 00007fee8b77e819
RDX: 0000000020000140 RSI: 00000000c008640a RDI: 0000000000000004
RBP: 00007fee8b7f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fee8b935fa0 R15: 00007ffe89f76318
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc900039b3000, ffffc900039b5000) created by:
 __nd_ioctl drivers/nvdimm/bus.c:1169 [inline]
 nd_ioctl+0xf14/0x18c0 drivers/nvdimm/bus.c:1264

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802a014e00 pfn:0x4e8a6
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: ffff88802a014e00 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2cc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), pid 7476, tgid 7475 (syz.3.385), ts 71253170543, free_ts 71206581929
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556
 prep_new_page mm/page_alloc.c:1564 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4751
 alloc_pages_bulk_noprof+0x72b/0x10b0 mm/page_alloc.c:4699
 alloc_pages_bulk_array_mempolicy_noprof+0x250/0x11f0 mm/mempolicy.c:2555
 vm_area_alloc_pages mm/vmalloc.c:3563 [inline]
 __vmalloc_area_node mm/vmalloc.c:3667 [inline]
 __vmalloc_node_range_noprof+0x517/0x1530 mm/vmalloc.c:3844
 __vmalloc_node_noprof mm/vmalloc.c:3909 [inline]
 vmalloc_noprof+0x6b/0x90 mm/vmalloc.c:3942
 __nd_ioctl drivers/nvdimm/bus.c:1169 [inline]
 nd_ioctl+0xf14/0x18c0 drivers/nvdimm/bus.c:1264
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7472 tgid 7471 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2657
 __folio_put+0x32a/0x450 mm/swap.c:112
 folio_put include/linux/mm.h:1488 [inline]
 free_page_and_swap_cache+0x249/0x2c0 mm/swap_state.c:308
 __tlb_remove_table arch/x86/include/asm/tlb.h:34 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x89/0xe0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0x79d/0x14d0 kernel/rcu/tree.c:2823
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:655
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702

Memory state around the buggy address:
 ffffc900039b2f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc900039b2f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc900039b3000: 00 00 00 00 00 00 00 03 f8 f8 f8 f8 f8 f8 f8 f8
                                        ^
 ffffc900039b3080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc900039b3100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
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