ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1363! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5427 Comm: syz.0.17 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 : ocfs2_block_group_set_bits+0x510/0x6c4 fs/ocfs2/suballoc.c:1363 lr : ocfs2_block_group_set_bits+0x510/0x6c4 fs/ocfs2/suballoc.c:1363 sp : ffffffc0216171e0 x29: ffffffc021617260 x28: ffffffb8042c2e7c x27: ffffff80df71a740 x26: 0000000000000002 x25: ffffff80e53bc00c x24: ffffff80f209cfb8 x23: dfffffc000000000 x22: 0000000000000168 x21: 0000000000000001 x20: 1ffffff8042c2e40 x19: ffffff80e53bc000 x18: ffffffc011b0fe20 x17: 1ffffff033e18d7e x16: ffffffc0082d0900 x15: 0000000000000000 x14: 00000000fffffffc x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00004009c64374 x10: 0000000000000000 x9 : ffffffc009c64374 x8 : ffffff80d06f5340 x7 : 0000000000000000 x6 : ffffffc008dc3fcc x5 : 0000000000000168 x4 : 0000000000000001 x3 : ffffff80df71a740 x2 : ffffff80e53bc000 x1 : 0000000000000002 x0 : 0000000000000168 Call trace: ocfs2_block_group_set_bits+0x510/0x6c4 fs/ocfs2/suballoc.c:1363 ocfs2_move_extent fs/ocfs2/move_extents.c:693 [inline] __ocfs2_move_extents_range+0x208c/0x2aac fs/ocfs2/move_extents.c:866 ocfs2_move_extents+0x314/0x7e0 fs/ocfs2/move_extents.c:933 ocfs2_ioctl_move_extents+0x420/0x5ec fs/ocfs2/move_extents.c:1065 ocfs2_ioctl+0x204/0xaf4 fs/ocfs2/ioctl.c:930 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+0x98/0x2bc 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: 17ffff5e 97a116fd d4210000 97a116fb (d4210000) ---[ end trace 0000000000000000 ]---