BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 8000000060b14067 P4D 8000000060b14067 PUD 0 
Oops: Oops: 0010 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 14744 Comm: syz.2.581 Not tainted 6.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc900040efb18 EFLAGS: 00010246
RAX: 1ffffffff18ba2dd RBX: ffffffff8c5d16e8 RCX: 00000000000000da
RDX: 0000000000001000 RSI: ffff88805bd13080 RDI: ffff88802a246e00
RBP: ffffc900040efc48 R08: ffffc900040efbc0 R09: ffffc900040efbe0
R10: dffffc0000000000 R11: 0000000000000000 R12: 00000000000000da
R13: 00000000000000da R14: dffffc0000000000 R15: ffff88805ff38000
FS:  00007f5d6d2146c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000007b8b0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 generic_perform_write+0x346/0x990 mm/filemap.c:4102
 ntfs_file_write_iter+0x6ee/0x7f0 fs/ntfs3/file.c:1267
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:679
 ksys_pwrite64 fs/read_write.c:786 [inline]
 __do_sys_pwrite64 fs/read_write.c:794 [inline]
 __se_sys_pwrite64 fs/read_write.c:791 [inline]
 __x64_sys_pwrite64+0x1ac/0x240 fs/read_write.c:791
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d6c38d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5d6d214038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f5d6c5a5fa0 RCX: 00007f5d6c38d169
RDX: 00000000000000da RSI: 0000400000000180 RDI: 0000000000000005
RBP: 00007f5d6c40e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5d6c5a5fa0 R15: 00007fffe4e2d138
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc900040efb18 EFLAGS: 00010246
RAX: 1ffffffff18ba2dd RBX: ffffffff8c5d16e8 RCX: 00000000000000da
RDX: 0000000000001000 RSI: ffff88805bd13080 RDI: ffff88802a246e00
RBP: ffffc900040efc48 R08: ffffc900040efbc0 R09: ffffc900040efbe0
R10: dffffc0000000000 R11: 0000000000000000 R12: 00000000000000da
R13: 00000000000000da R14: dffffc0000000000 R15: ffff88805ff38000
FS:  00007f5d6d2146c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000007b8b0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400