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#0: syz.0.12/6047
Modules linked in:
CPU: 0 UID: 0 PID: 6047 Comm: syz.0.12 Not tainted syzkaller #0 PREEMPT(full) 
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 4a 22 01 00 e9 db 24 9b 00 e8 10 f2 ec 00 4c 89 ee 48 c7 c7 60 2c 0c 8c e8 31 22 01 00 90 <0f> 0b 90 e9 bb 24 9b 00 e8 f3 f1 ec 00 41 0f b6 d7 4c 89 ee 48 c7
RSP: 0018:ffffc90004b7f8d8 EFLAGS: 00010282
RAX: 0000000000000032 RBX: 1ffff9200096ff1f RCX: 0000000000000000
RDX: 0000000000000032 RSI: ffffffff81ebf219 RDI: fffff5200096ff0c
RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8fef6eab R11: 0000000000000001 R12: 8000000000000fff
R13: 8000000000000000 R14: 0000000000000002 R15: 0000000000020000
FS:  00007f76733c16c0(0000) GS:ffff8880d447f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e3fcff8 CR3: 0000000037a26000 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_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f767259f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f76733c1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7672825fa0 RCX: 00007f767259f559
RDX: 000000000000001e RSI: 0000200000000880 RDI: 0000000000000009
RBP: 00007f7672636b50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7672826038 R14: 00007f7672825fa0 R15: 00007ffe58199bf8
 </TASK>