------------[ cut here ]------------
WARNING: CPU: 0 PID: 28278 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: 28278 Comm: syz-executor.0 Not tainted 5.18.0-rc6-next-20220516-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 e9 44 43 00 4c 89 ee 4c 89 e7 e8 ae dd ff ff e8 d9 44 43 00 48 85 db 0f 85 58 ff ff ff eb 82 e8 c9 44 43 00 <0f> 0b e9 76 ff ff ff 48 89 df e8 2a e7 8f 00 e9 98 fe ff ff e8 30
RSP: 0018:ffffc90004a579d0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801ac03af8 RCX: 0000000000000000
RDX: ffff88801e060000 RSI: ffffffff81376717 RDI: 0000000000000003
RBP: 1ffff9200094af3a R08: 0000000000000000 R09: 000000000000000a
R10: ffffffff813765e6 R11: 0000000000000004 R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801ac03b18
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc3cf7a0000 CR3: 000000006471a000 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:1670
 unmap_vmas+0x21e/0x370 mm/memory.c:1732
 exit_mmap+0x1ec/0x740 mm/mmap.c:3220
 __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
 __do_sys_exit_group kernel/exit.c:936 [inline]
 __se_sys_exit_group kernel/exit.c:934 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:934
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f8af44890e9
Code: Unable to access opcode bytes at RIP 0x7f8af44890bf.
RSP: 002b:00007f8af551eaf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8af44890e9
RDX: 00007f8af4489132 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000020ffc000 R14: 0000000000000000 R15: 0000000020ffc000
 </TASK>