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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 ffffc900040e1038 by task syz.2.503/8046

CPU: 3 UID: 0 PID: 8046 Comm: syz.2.503 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: 0033:0x7fde8757e819
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:00007fde88318038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fde87735fa0 RCX: 00007fde8757e819
RDX: 0000000020000140 RSI: 00000000c008640a RDI: 0000000000000004
RBP: 00007fde875f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde87735fa0 R15: 00007ffcb4abaf28
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc900040e1000, ffffc900040e3000) 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:0x0 pfn:0x30b93
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 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 8046, tgid 8045 (syz.2.503), ts 84907422800, free_ts 84277899578
 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 7992 tgid 7992 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
 kvm_mmu_free_memory_cache+0x189/0x2d0 virt/kvm/kvm_main.c:421
 mmu_free_memory_caches arch/x86/kvm/mmu/mmu.c:619 [inline]
 kvm_mmu_destroy+0x45/0x60 arch/x86/kvm/mmu/mmu.c:7237
 kvm_arch_vcpu_destroy+0x17c/0x2b0 arch/x86/kvm/x86.c:12366
 kvm_vcpu_destroy virt/kvm/kvm_main.c:470 [inline]
 kvm_destroy_vcpus+0x114/0x290 virt/kvm/kvm_main.c:490
 kvm_arch_destroy_vm+0x2ec/0x490 arch/x86/kvm/x86.c:12867
 kvm_destroy_vm virt/kvm/kvm_main.c:1304 [inline]
 kvm_put_kvm+0x4fa/0xb40 virt/kvm/kvm_main.c:1340
 kvm_vm_release+0x3c/0x50 virt/kvm/kvm_main.c:1363
 __fput+0x3f8/0xb60 fs/file_table.c:450
 task_work_run+0x14e/0x250 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffffc900040e0f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc900040e0f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc900040e1000: 00 00 00 00 00 00 00 03 f8 f8 f8 f8 f8 f8 f8 f8
                                        ^
 ffffc900040e1080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc900040e1100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
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