ioremap: invalid physical address 8000000000000000
------------[ cut here ]------------
1
WARNING: arch/x86/mm/ioremap.c:206 at __ioremap_caller+0x51e/0x620 arch/x86/mm/ioremap.c:206, CPU#1: syz.4.1929/13848
Modules linked in:
CPU: 1 UID: 0 PID: 13848 Comm: syz.4.1929 Tainted: G             L     Y syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP, [Y]=FORCED_BIND
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__ioremap_caller+0x51e/0x620 arch/x86/mm/ioremap.c:206
Code: 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 0a 84 7e 0a cc e8 c4 22 4f 00 48 8b 74 24 60 48 c7 c7 a0 0c 0a 8c e8 f3 06 ae ff 90 <0f> 0b 90 e9 49 fd ff ff 4c 8b 74 24 28 41 81 e6 ff 0f 00 00 4d 01
RSP: 0018:ffffc900031df880 EFLAGS: 00010246
RAX: 0000000000000032 RBX: 1ffff9200063bf00 RCX: f3990c7f5242ae00
RDX: ffffc900059e9000 RSI: 000000000000027f RDI: 0000000000000280
RBP: ffffc900031df990 R08: ffffc900031df607 R09: 1ffff9200063bec0
R10: dffffc0000000000 R11: fffff5200063bec1 R12: 0000000000020000
R13: 000000000000002e R14: 8000000000000fff R15: dffffc0000000000
FS:  00007fe4006816c0(0000) GS:ffff888123b8b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c69dc CR3: 00000000498b8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 phram_map drivers/mtd/devices/phram.c:92 [inline]
 register_device+0x12c/0x570 drivers/mtd/devices/phram.c:139
 phram_setup+0x412/0x620 drivers/mtd/devices/phram.c:324
 param_attr_store+0x214/0x310 kernel/params.c:591
 module_attr_store+0x65/0x90 kernel/params.c:906
 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:1036
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe3ff79e559
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:00007fe400681028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe3ffa25fa0 RCX: 00007fe3ff79e559
RDX: 000000000000001e RSI: 0000200000000b00 RDI: 0000000000000003
RBP: 00007fe3ff835ab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe3ffa26038 R14: 00007fe3ffa25fa0 R15: 00007ffee36e59d8
 </TASK>