R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 3 PID: 24131 at arch/x86/mm/pat/memtype.c:1060 untrack_pfn+0x35c/0x410 arch/x86/mm/pat/memtype.c:1060
Modules linked in:
CPU: 3 PID: 24131 Comm: syz-executor.1 Not tainted 6.3.0-rc6-syzkaller-00046-gde4664485abb #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:untrack_pfn+0x35c/0x410 arch/x86/mm/pat/memtype.c:1060
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 84 92 fe ff ff e8 1e 6d 99 00 e9 88 fe ff ff e8 f4 5a 48 00 <0f> 0b e9 84 fe ff ff e8 e8 5a 48 00 48 8d bd 98 01 00 00 31 f6 e8
RSP: 0018:ffffc9000d5ff738 EFLAGS: 00010212
RAX: 000000000002c863 RBX: ffff88804acc59a0 RCX: ffffc9000472a000
RDX: 0000000000040000 RSI: ffffffff813a806c RDI: 0000000000000005
RBP: 00000000ffffffea R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffea R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff92001abfee7 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7f16b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f737c0c4 CR3: 000000005247c000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unmap_single_vma+0x1bd/0x2a0 mm/memory.c:1631
 unmap_vmas+0x234/0x380 mm/memory.c:1692
 exit_mmap+0x190/0x7f0 mm/mmap.c:3031
 __mmput+0x128/0x4c0 kernel/fork.c:1207
 mmput+0x60/0x70 kernel/fork.c:1229
 dup_mm kernel/fork.c:1564 [inline]
 copy_mm kernel/fork.c:1597 [inline]
 copy_process+0x7296/0x7590 kernel/fork.c:2267
 kernel_clone+0xeb/0x890 kernel/fork.c:2682
 __do_compat_sys_ia32_clone+0x9e/0xd0 arch/x86/kernel/sys_ia32.c:254
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f1b579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f1657c EFLAGS: 00000246 ORIG_RAX: 0000000000000078
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	retq
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi