------------[ cut here ]------------
WARNING: CPU: 0 PID: 31615 at arch/x86/mm/pat/memtype.c:1107 untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1107
Modules linked in:
CPU: 0 PID: 31615 Comm: syz-executor.5 Not tainted 6.0.0-rc3-next-20220829-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1107
Code: 84 6c ff ff ff e8 c9 40 44 00 4c 89 ee 4c 89 e7 e8 be de ff ff e8 b9 40 44 00 48 85 db 0f 85 58 ff ff ff eb 82 e8 a9 40 44 00 <0f> 0b e9 76 ff ff ff 48 89 df e8 ea fb 90 00 e9 98 fe ff ff e8 b0
RSP: 0018:ffffc900163d7710 EFLAGS: 00010216
RAX: 0000000000000e2c RBX: ffff8880327f5af8 RCX: ffffc90005291000
RDX: 0000000000040000 RSI: ffffffff8137e207 RDI: 0000000000000005
RBP: 1ffff92002c7aee2 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffea R11: 000000000008c07c R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880327f5b18
FS:  00007fe55b836700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9d3d6a1b8 CR3: 0000000044a15000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unmap_single_vma+0x1b4/0x380 mm/memory.c:1669
 unmap_vmas+0x21e/0x370 mm/memory.c:1734
 exit_mmap+0x189/0x720 mm/mmap.c:3090
 __mmput+0x128/0x4c0 kernel/fork.c:1184
 mmput+0x5c/0x70 kernel/fork.c:1206
 dup_mm+0x2e2/0x370 kernel/fork.c:1541
 copy_mm kernel/fork.c:1574 [inline]
 copy_process+0x3be1/0x7110 kernel/fork.c:2255
 kernel_clone+0xe7/0xab0 kernel/fork.c:2673
 __do_sys_clone+0xba/0x100 kernel/fork.c:2814
 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+0x63/0xcd
RIP: 0033:0x7fe55a689279
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe55b836118 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fe55a79bf80 RCX: 00007fe55a689279
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fe55b8361d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff05f8c83f R14: 00007fe55b836300 R15: 0000000000022000
 </TASK>