ioremap: invalid physical address 8000000000000000
------------[ cut here ]------------
1
WARNING: arch/x86/mm/ioremap.c:206 at __ioremap_caller.isra.0.cold+0x59/0xa4 arch/x86/mm/ioremap.c:206, CPU#2: syz.2.533/7753
Modules linked in:

CPU: 2 UID: 0 PID: 7753 Comm: syz.2.533 Tainted: G             L       syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__ioremap_caller.isra.0.cold+0x59/0xa4 arch/x86/mm/ioremap.c:206
Code: 48 8b 34 24 48 c7 c7 00 2e 0c 8c e8 ca 22 01 00 e9 1b e1 9a 00 e8 10 eb eb 00 4c 89 ee 48 c7 c7 60 2c 0c 8c e8 b1 22 01 00 90 <0f> 0b 90 e9 fb e0 9a 00 e8 f3 ea eb 00 41 0f b6 d7 4c 89 ee 48 c7
RSP: 0018:ffffc90006bcf8b8 EFLAGS: 00010286

RAX: 0000000000000032 RBX: 1ffff92000d79f1b RCX: 0000000000000000
RDX: 0000000000000032 RSI: ffffffff81eaf719 RDI: fffff52000d79f08
RBP: 0000000000001000 R08: 0000000000000007 R09: 0000000000000000
R10: 8000000000000000 R11: 0000000000000001 R12: 8000000000000fff
R13: 8000000000000000 R14: 0000000000000002 R15: 0000000000020000
FS:  0000000000000000(0000) GS:ffff8880954c4000(0063) knlGS:00000000f5436b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000057cdc1fc CR3: 00000000721bb000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 phram_map drivers/mtd/devices/phram.c:92 [inline]
 register_device+0x1bb/0x6a0 drivers/mtd/devices/phram.c:139
 phram_setup+0x3b1/0x4c0 drivers/mtd/devices/phram.c:324
 phram_param_call+0xa6/0xd0 drivers/mtd/devices/phram.c:349
 param_attr_store+0x199/0x300 kernel/params.c:591
 module_attr_store+0x58/0x80 kernel/params.c:906
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6af/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x14b/0x8c0 arch/x86/entry/syscall_32.c:282
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:307
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf741efbc
Code: d2 74 05 c1 e8 0c 89 02 8b 5d fc 31 c0 c9 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 2e 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 58 b8
RSP: 002b:00000000f543650c EFLAGS: 00000292
 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000080000380
RDX: 000000000000001e RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	d2 74 05 c1          	shlb   %cl,-0x3f(%rbp,%rax,1)
   4:	e8 0c 89 02 8b       	call   0x8b028915
   9:	5d                   	pop    %rbp
   a:	fc                   	cld
   b:	31 c0                	xor    %eax,%eax
   d:	c9                   	leave
   e:	c3                   	ret
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	0f 1f 00             	nopl   (%rax)
  21:	51                   	push   %rcx
  22:	52                   	push   %rdx
  23:	55                   	push   %rbp
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	2e 8d b4 26 00 00 00 	cs lea 0x0(%rsi,%riz,1),%esi
  36:	00
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  3e:	58                   	pop    %rax
  3f:	b8                   	.byte 0xb8