loop1: detected capacity change from 0 to 4096 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4537 at fs/nilfs2/sufile.c:475 nilfs_sufile_do_free+0x470/0x76c fs/nilfs2/sufile.c:475 Modules linked in: CPU: 0 PID: 4537 Comm: syz.1.33 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 : ffff800021246fb0 x29: ffff800021246fe0 x28: dfff800000000000 x27: 0000000000008000 x26: ffff0000f51c30bc x25: ffff0000f51c30b0 x24: ffff0000e26225e8 x23: ffff0000ccb515d8 x22: 1fffe0001996a2bb x21: 0000000000008000 x20: 1fffe0001ea38617 x19: ffff0000ccb50000 x18: ffff800011b9bf60 x17: ffff80001835b000 x16: ffff8000082d7db8 x15: 0000000000000002 x14: 00000000ffffffef x13: 0000000000ff0100 x12: 0000000000080000 x11: 0000000000014637 x10: ffff800021afc000 x9 : ffff800009c91bdc x8 : 0000000000014638 x7 : ffff8000086f2be4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff0000f88b9488 x2 : ffff0000f88b9488 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: 11862 hardirqs last enabled at (11861): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (11861): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (11862): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (11708): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (11706): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---