exFAT-fs (loop2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
exFAT-fs (loop2): Medium has reported failures. Some data may be lost.
exFAT-fs (loop2): failed to load upcase table (idx : 0x00010000, chksum : 0xe2e35dda, utbl_chksum : 0xe619d30d)
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 123056067 P4D 123056067 
PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 455 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc90000ba79d8 EFLAGS: 00010246
RAX: 1ffffffff0aa0c40 RBX: 1ffff110223a5dba RCX: ffff888117dee2c0
RDX: 0000000000000000 RSI: ffff888111d2edd0 RDI: ffff88812dcb1210
RBP: ffffc90000ba7ab0 R08: ffffffff8711f2f7 R09: 1ffffffff0e23e5e
R10: dffffc0000000000 R11: fffffbfff0e23e5f R12: dffffc0000000000
R13: ffff888111d2edd0 R14: ffffffff85506200 R15: 1ffff92000174f40
FS:  00007f226ab736c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000012309f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __lookup_slow+0x2b8/0x410 fs/namei.c:1671
 lookup_one_len+0x19d/0x2d0 fs/namei.c:2726
 incfs_lookup_dentry+0x60/0xb0 fs/incfs/data_mgmt.c:210
 ioctl_create_file fs/incfs/pseudo_files.c:556 [inline]
 pending_reads_dispatch_ioctl+0x161e/0x1e70 fs/incfs/pseudo_files.c:1030
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f226ad10819
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:00007f226ab73028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f226af89fa0 RCX: 00007f226ad10819
RDX: 00002000000000c0 RSI: 00000000c058671e RDI: 0000000000000005
RBP: 00007f226ada6c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f226af8a038 R14: 00007f226af89fa0 R15: 00007ffdd97153d8
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 2ee19fa1a953915a ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc90000ba79d8 EFLAGS: 00010246
RAX: 1ffffffff0aa0c40 RBX: 1ffff110223a5dba RCX: ffff888117dee2c0
RDX: 0000000000000000 RSI: ffff888111d2edd0 RDI: ffff88812dcb1210
RBP: ffffc90000ba7ab0 R08: ffffffff8711f2f7 R09: 1ffffffff0e23e5e
R10: dffffc0000000000 R11: fffffbfff0e23e5f R12: dffffc0000000000
R13: ffff888111d2edd0 R14: ffffffff85506200 R15: 1ffff92000174f40
FS:  00007f226ab736c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000012309f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400