------------[ cut here ]------------
WARNING: CPU: 0 PID: 3690 at arch/x86/mm/pat/memtype.c:1099 untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1099
Modules linked in:
CPU: 0 PID: 3690 Comm: syz-executor122 Not tainted 5.18.0-rc6-next-20220512-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1099
Code: 84 6c ff ff ff e8 c9 40 43 00 4c 89 ee 4c 89 e7 e8 ae dd ff ff e8 b9 40 43 00 48 85 db 0f 85 58 ff ff ff eb 82 e8 a9 40 43 00 <0f> 0b e9 76 ff ff ff 48 89 df e8 6a e3 8f 00 e9 98 fe ff ff e8 e0
RSP: 0018:ffffc90002ebf730 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801dbe9000 RCX: 0000000000000000
RDX: ffff88801e213a80 RSI: ffffffff81372547 RDI: 0000000000000003
RBP: 1ffff920005d7ee6 R08: 0000000000000000 R09: 000000000000000b
R10: ffffffff81372416 R11: 0000000000000006 R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801dbe9020
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000001f554000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unmap_single_vma+0x1b4/0x350 mm/memory.c:1671
 unmap_vmas+0x21e/0x370 mm/memory.c:1733
 exit_mmap+0x1ec/0x740 mm/mmap.c:3216
 __mmput+0x128/0x4c0 kernel/fork.c:1180
 mmput+0x5c/0x70 kernel/fork.c:1201
 exit_mm kernel/exit.c:510 [inline]
 do_exit+0xa18/0x2a00 kernel/exit.c:782
 do_group_exit+0xd2/0x2f0 kernel/exit.c:925
 get_signal+0x2542/0x2600 kernel/signal.c:2857
 arch_do_signal_or_restart+0x82/0x20f0 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop kernel/entry/common.c:166 [inline]
 exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:201
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:307
 exc_page_fault+0xc6/0x180 arch/x86/mm/fault.c:1543
 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 002b:00007ffc4b257370 EFLAGS: 00010217
RAX: ffffffffffffffff RBX: 0000000000000000 RCX: 00007fefe09c51a2
RDX: ffffffffffffffc0 RSI: 0000000000048140 RDI: 0000000020fff000
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000008011 R11: 0000000000000206 R12: 0000000020ffe000
R13: 0000000020fff000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>