syzbot

loop0: detected capacity change from 0 to 4096
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4452 at fs/nilfs2/sufile.c:475 nilfs_sufile_do_free+0x470/0x76c fs/nilfs2/sufile.c:475
Modules linked in:
CPU: 0 PID: 4452 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : nilfs_sufile_do_free+0x470/0x76c fs/nilfs2/sufile.c:475
lr : nilfs_sufile_do_free+0x470/0x76c fs/nilfs2/sufile.c:475
sp : ffff800021186fb0
x29: ffff800021186fe0 x28: dfff800000000000 x27: 0000000000008000
x26: ffff0000d84ed0bc x25: ffff0000d84ed0b0 x24: ffff0000e9af25e8
x23: ffff0000d1566918 x22: 1fffe0001a2acd23 x21: 0000000000008000
x20: 1fffe0001b09da17 x19: ffff0000d1565340 x18: ffff800011b9bf60
x17: ffff80001835b000 x16: ffff8000082d7db8 x15: 0000000000000000
x14: 00000000ffffffef x13: 0000000000ff0100 x12: 0000000000ff0100
x11: ff00800009c91bdc x10: 0000000000000000 x9 : ffff800009c91bdc
x8 : ffff0000d1565340 x7 : ffff8000086f2be4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff0000e0b30828
x2 : ffff0000e0b30828 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 nilfs_sufile_do_free+0x470/0x76c fs/nilfs2/sufile.c:475
 nilfs_sufile_updatev+0x314/0x540 fs/nilfs2/sufile.c:196
 nilfs_sufile_freev fs/nilfs2/sufile.h:87 [inline]
 nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1246 [inline]
 nilfs_segctor_collect fs/nilfs2/segment.c:1534 [inline]
 nilfs_segctor_do_construct+0x19b4/0x61f8 fs/nilfs2/segment.c:2090
 nilfs_segctor_construct+0x134/0x540 fs/nilfs2/segment.c:2453
 nilfs_clean_segments+0x2e8/0x870 fs/nilfs2/segment.c:2527
 nilfs_ioctl_clean_segments fs/nilfs2/ioctl.c:940 [inline]
 nilfs_ioctl+0x22c0/0x2660 fs/nilfs2/ioctl.c:1304
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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
irq event stamp: 13364
hardirqs last  enabled at (13363): [<ffff800011b238fc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (13363): [<ffff800011b238fc>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (13364): [<ffff800011a387cc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (13202): [<ffff800008030954>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (13200): [<ffff800008030920>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---