------------[ cut here ]------------
WARNING: CPU: 1 PID: 7335 at arch/x86/mm/pat/memtype.c:1099 untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1099
Modules linked in:
CPU: 1 PID: 7335 Comm: syz-executor.4 Not tainted 5.19.0-rc1-syzkaller-00024-g6bfb56e93bce #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 99 4f 43 00 4c 89 ee 4c 89 e7 e8 de dd ff ff e8 89 4f 43 00 48 85 db 0f 85 58 ff ff ff eb 82 e8 79 4f 43 00 <0f> 0b e9 76 ff ff ff 48 89 df e8 1a 13 90 00 e9 98 fe ff ff e8 90
RSP: 0018:ffffc9000df7f6f8 EFLAGS: 00010216
RAX: 0000000000000b0d RBX: ffff88807f3cde70 RCX: ffffc900040c7000
RDX: 0000000000040000 RSI: ffffffff813726f7 RDI: 0000000000000005
RBP: 1ffff92001befedf R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffea R11: 0000000000000001 R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88807f3cdec0
FS:  00007fcbedb01700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf62cccf18 CR3: 00000000991d6000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 unmap_single_vma+0x1ba/0x360 mm/memory.c:1662
 unmap_vmas+0x18c/0x310 mm/memory.c:1723
 exit_mmap+0x1c4/0x4a0 mm/mmap.c:3162
 __mmput+0x122/0x4b0 kernel/fork.c:1187
 mmput+0x56/0x60 kernel/fork.c:1208
 dup_mm+0xd73/0x1390 kernel/fork.c:1540
 copy_mm kernel/fork.c:1576 [inline]
 copy_process+0x3bba/0x7020 kernel/fork.c:2240
 kernel_clone+0xe7/0xab0 kernel/fork.c:2655
 __do_sys_clone+0xba/0x100 kernel/fork.c:2789
 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: 0033:0x7fcbeca89109
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:00007fcbedb01118 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fcbecb9bf60 RCX: 00007fcbeca89109
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcbedb011d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fcbed0cfb1f R14: 00007fcbedb01300 R15: 0000000000022000
 </TASK>