ioremap: invalid physical address 8000000000000000
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1
WARNING: arch/x86/mm/ioremap.c:206 at __ioremap_caller+0x51e/0x620 arch/x86/mm/ioremap.c:206, CPU#0: syz.1.35/5950
Modules linked in:
CPU: 0 UID: 0 PID: 5950 Comm: syz.1.35 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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 c3 cc cc cc cc cc e8 54 15 4e 00 48 8b 74 24 60 48 c7 c7 80 0c 8a 8b e8 c3 a3 ad 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:ffffc9000611f880 EFLAGS: 00010246
RAX: 0000000000000032 RBX: 1ffff92000c23f00 RCX: 911a4cbda220f100
RDX: ffffc9000ee21000 RSI: 0000000000000285 RDI: 0000000000000286
RBP: ffffc9000611f990 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000c23ec1 R12: 0000000000020000
R13: 000000000000002e R14: 8000000000000fff R15: dffffc0000000000
FS:  00007f3a3a53e6c0(0000) GS:ffff888124716000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3390fff8 CR3: 000000002c610000 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+0x3a5/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61e/0xbb0 fs/read_write.c:687
 ksys_write+0x156/0x270 fs/read_write.c:739
 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: 0033:0x7f3a3c2ef559
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:00007f3a3a53e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3a3c575fa0 RCX: 00007f3a3c2ef559
RDX: 000000000000001e RSI: 0000200000000cc0 RDI: 000000000000000a
RBP: 00007f3a3c386b50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3a3c576038 R14: 00007f3a3c575fa0 R15: 00007fff3956b638
 </TASK>