loop2: detected capacity change from 0 to 4096
ntfs: volume version 3.1.
------------[ cut here ]------------
kernel BUG at fs/ntfs/attrib.c:1956!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 5184 Comm: syz.2.98 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ntfs_attr_extend_allocation+0x2ab4/0x33e0 fs/ntfs/attrib.c:1956
lr : ntfs_attr_extend_allocation+0x2ab4/0x33e0 fs/ntfs/attrib.c:1956
sp : ffff800022667720
x29: ffff800022667870 x28: dfff800000000000 x27: ffff0000cffc5080
x26: 8000000000000000 x25: ffff0000cffc5088 x24: 7fffffffffffffff
x23: ffff0000f5ff0070 x22: 1ffff0000388d1a0 x21: ffffffffffffffff
x20: 0000000000001000 x19: ffff0000f5ff0000 x18: ffff800011abbcc0
x17: ffff8000181fa000 x16: ffff8000082d22e0 x15: 0000000000000002
x14: 00000000ffff8000 x13: 0000000010f9ded2 x12: 0000000000080000
x11: 000000000000bd74 x10: ffff800026e8b000 x9 : ffff800009523244
x8 : 000000000000bd75 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000001 x3 : ffffffffffffffff
x2 : 7fffffffffffffff x1 : 8000000000000000 x0 : 7fffffffffffffff
Call trace:
 ntfs_attr_extend_allocation+0x2ab4/0x33e0 fs/ntfs/attrib.c:1956
 ntfs_truncate+0x9a0/0x2138 fs/ntfs/inode.c:2682
 ntfs_truncate_vfs fs/ntfs/inode.c:2862 [inline]
 ntfs_setattr+0x260/0x320 fs/ntfs/inode.c:2914
 notify_change+0xb0c/0xdcc fs/attr.c:499
 do_truncate+0x178/0x1f0 fs/open.c:65
 vfs_truncate+0x23c/0x2b0 fs/open.c:111
 do_sys_truncate+0xe8/0x1b0 fs/open.c:134
 __do_sys_truncate fs/open.c:146 [inline]
 __se_sys_truncate fs/open.c:144 [inline]
 __arm64_sys_truncate+0x5c/0x70 fs/open.c:144
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: d4210000 97bdfa43 d4210000 97bdfa41 (d4210000) 
---[ end trace 0000000000000000 ]---