==================================================================
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+0x199a/0x1ca0 drivers/acpi/nfit/core.c:459
Read of size 4 at addr ffffc9000323d038 by task syz.1.11390/13390
CPU: 0 UID: 0 PID: 13390 Comm: syz.1.11390 Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #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:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
cmd_to_func drivers/acpi/nfit/core.c:416 [inline]
acpi_nfit_ctl+0x199a/0x1ca0 drivers/acpi/nfit/core.c:459
__nd_ioctl drivers/nvdimm/bus.c:1186 [inline]
nd_ioctl+0x13bc/0x18c0 drivers/nvdimm/bus.c:1264
compat_ptr_ioctl+0x6b/0xa0 fs/ioctl.c:946
__do_compat_sys_ioctl+0x2bd/0x330 fs/ioctl.c:1007
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7f02579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f564456c EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00000000c008640a
RDX: 0000000020000140 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
The buggy address belongs to the virtual mapping at
[ffffc9000323d000, ffffc9000323f000) 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:0x20 pfn:0x5b616
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000020 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 0x102cc2(GFP_HIGHUSER|__GFP_NOWARN), pid 13390, tgid 13387 (syz.1.11390), ts 2726428491566, free_ts 2723697987862
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1500
prep_new_page mm/page_alloc.c:1508 [inline]
get_page_from_freelist+0x1351/0x2e50 mm/page_alloc.c:3446
__alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4702
alloc_pages_bulk_noprof+0x742/0x14f0 mm/page_alloc.c:4650
alloc_pages_bulk_array_mempolicy_noprof+0x25b/0x1220 mm/mempolicy.c:2554
vm_area_alloc_pages mm/vmalloc.c:3553 [inline]
__vmalloc_area_node mm/vmalloc.c:3656 [inline]
__vmalloc_node_range_noprof+0x51e/0x14e0 mm/vmalloc.c:3837
__vmalloc_node_noprof mm/vmalloc.c:3902 [inline]
vmalloc_noprof+0x6b/0x90 mm/vmalloc.c:3935
__nd_ioctl drivers/nvdimm/bus.c:1169 [inline]
nd_ioctl+0xf14/0x18c0 drivers/nvdimm/bus.c:1264
compat_ptr_ioctl+0x6b/0xa0 fs/ioctl.c:946
__do_compat_sys_ioctl+0x2bd/0x330 fs/ioctl.c:1007
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
page last free pid 22782 tgid 22782 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1101 [inline]
free_unref_page+0x64a/0xe40 mm/page_alloc.c:2619
kasan_depopulate_vmalloc_pte+0x63/0x80 mm/kasan/shadow.c:408
apply_to_pte_range mm/memory.c:2814 [inline]
apply_to_pmd_range mm/memory.c:2858 [inline]
apply_to_pud_range mm/memory.c:2894 [inline]
apply_to_p4d_range mm/memory.c:2930 [inline]
__apply_to_page_range+0x795/0xdd0 mm/memory.c:2964
kasan_release_vmalloc+0xac/0xc0 mm/kasan/shadow.c:525
purge_vmap_node+0x3ec/0x920 mm/vmalloc.c:2209
__purge_vmap_area_lazy+0x9ca/0xc10 mm/vmalloc.c:2293
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2327
process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3393
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Memory state around the buggy address:
ffffc9000323cf00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
ffffc9000323cf80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc9000323d000: 00 00 00 00 00 00 00 03 f8 f8 f8 f8 f8 f8 f8 f8
^
ffffc9000323d080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
ffffc9000323d100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
==================================================================
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi