ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1365! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 7289 Comm: syz.0.17 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO BTYPE=--) pc : ocfs2_block_group_set_bits+0x44c/0x70c fs/ocfs2/suballoc.c:1365 lr : ocfs2_block_group_set_bits+0x444/0x70c fs/ocfs2/suballoc.c:1365 sp : ffffff80cb35f950 x29: ffffff80cb35f980 x28: dfffffd000000000 x27: 1ffffff019f28001 x26: 0000000000000002 x25: ffffff80e95b4d38 x24: ffffff80cf94000c x23: ffffff80cf940000 x22: 0000000000000168 x21: 0000000000000001 x20: ffffff80da545e80 x19: dfffffd000000000 x18: ffffffd01197d7ac x17: 00000000fffffffc x16: 0000000000ff0100 x15: ffffffffffffffff x14: ffffff80ca764f80 x13: ffffffd01dd9b000 x12: 0000000000000000 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffffff80ca764f80 x8 : ffffffd01198f8a8 x7 : 0000000000000000 x6 : ffffffd010c7ba54 x5 : 0000000000000168 x4 : 0000000000000001 x3 : ffffff80da545e80 x2 : ffffff80cf940000 x1 : 0000000000000002 x0 : ffffffd01bc8af10 Call trace: ocfs2_block_group_set_bits+0x44c/0x70c fs/ocfs2/suballoc.c:1365 ocfs2_move_extent fs/ocfs2/move_extents.c:695 [inline] __ocfs2_move_extents_range+0x1e74/0x27ec fs/ocfs2/move_extents.c:868 ocfs2_move_extents+0x2b0/0x750 fs/ocfs2/move_extents.c:935 ocfs2_ioctl_move_extents+0x3b0/0x55c fs/ocfs2/move_extents.c:1067 ocfs2_ioctl+0x2ac/0x10c8 fs/ocfs2/ioctl.c:946 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __arm64_sys_ioctl+0x148/0x1c0 fs/ioctl.c:739 __invoke_syscall arch/arm64/kernel/syscall.c:36 [inline] invoke_syscall arch/arm64/kernel/syscall.c:48 [inline] el0_svc_common+0x1b8/0x480 arch/arm64/kernel/syscall.c:155 do_el0_svc+0x54/0x134 arch/arm64/kernel/syscall.c:194 el0_svc+0x1c/0x28 arch/arm64/kernel/entry-common.c:365 el0_sync_handler+0xc4/0xd8 arch/arm64/kernel/entry-common.c:381 el0_sync+0x168/0x180 arch/arm64/kernel/entry.S:689 Code: 95bd6322 97aad992 f00517c0 913c4000 (d4210000) ---[ end trace f4492e09a8a518f9 ]---