------------[ cut here ]------------
WARNING: CPU: 1 PID: 3607 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: 3607 Comm: syz-executor338 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1107
Code: 84 6c ff ff ff e8 a9 29 44 00 4c 89 ee 4c 89 e7 e8 be de ff ff e8 99 29 44 00 48 85 db 0f 85 58 ff ff ff eb 82 e8 89 29 44 00 <0f> 0b e9 76 ff ff ff 48 89 df e8 8a 90 91 00 e9 98 fe ff ff e8 c0
RSP: 0018:ffffc900044c76f8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880237cbe70 RCX: 0000000000000000
RDX: ffff888020d5bb00 RSI: ffffffff813720b7 RDI: 0000000000000005
RBP: 1ffff92000898edf R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffea R11: 000000000008c07d R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880237cbec0
FS:  0000555556c9e300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c99320060 CR3: 000000001cca2000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 unmap_single_vma+0x1ba/0x360 mm/memory.c:1670
 unmap_vmas+0x18c/0x310 mm/memory.c:1731
 exit_mmap+0x1b8/0x490 mm/mmap.c:3116
 __mmput+0x122/0x4b0 kernel/fork.c:1187
 mmput+0x56/0x60 kernel/fork.c:1208
 dup_mm+0xdb4/0x13a0 kernel/fork.c:1540
 copy_mm kernel/fork.c:1576 [inline]
 copy_process+0x3bd3/0x7110 kernel/fork.c:2254
 kernel_clone+0xe7/0x8f0 kernel/fork.c:2672
 __do_sys_clone+0xba/0x100 kernel/fork.c:2806
 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: 0033:0x7f8c992f0699
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd9260db98 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8c992f0699
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd9260dbb0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
 </TASK>