------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1371! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 28384 Comm: syz.0.6809 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 RIP: 0010:ocfs2_block_group_set_bits+0x57e/0x6b0 fs/ocfs2/suballoc.c:1371 Code: ff 44 89 e1 80 e1 07 fe c1 38 c1 0f 8c 4c fd ff ff 4c 89 e7 e8 83 45 76 fe e9 3f fd ff ff e8 d9 cd 1d fe 0f 0b e8 d2 cd 1d fe <0f> 0b 65 44 8b 25 a4 a0 9a 7c bf 07 00 00 00 44 89 e6 e8 6b d1 1d RSP: 0018:ffffc900136973c0 EFLAGS: 00010246 RAX: ffffffff8369179e RBX: 00000000000000dc RCX: 0000000000080000 RDX: ffffc9000d8ed000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900136974b0 R08: 0000000000000007 R09: 00000000000000dc R10: 00000000fffffffc R11: 0000000000000002 R12: dffffc0000000000 R13: 0000000000000007 R14: ffff88804b871000 R15: 000000000000006b FS: 00007f8bba1ea6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c29fc81 CR3: 0000000048984000 CR4: 00000000003506f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000086 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: ocfs2_move_extent fs/ocfs2/move_extents.c:693 [inline] __ocfs2_move_extents_range+0x29a9/0x3450 fs/ocfs2/move_extents.c:866 ocfs2_move_extents+0x3f9/0xa10 fs/ocfs2/move_extents.c:938 ocfs2_ioctl_move_extents+0x4db/0x6e0 fs/ocfs2/move_extents.c:1064 ocfs2_ioctl+0x199/0x7e0 fs/ocfs2/ioctl.c:961 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8bb939de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8bba1ea028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8bb9626090 RCX: 00007f8bb939de99 RDX: 00002000000000c0 RSI: 0000000040406f06 RDI: 0000000000000006 RBP: 00007f8bb9433eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8bb9626128 R14: 00007f8bb9626090 R15: 00007ffdfe43a328 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_block_group_set_bits+0x57e/0x6b0 fs/ocfs2/suballoc.c:1371 Code: ff 44 89 e1 80 e1 07 fe c1 38 c1 0f 8c 4c fd ff ff 4c 89 e7 e8 83 45 76 fe e9 3f fd ff ff e8 d9 cd 1d fe 0f 0b e8 d2 cd 1d fe <0f> 0b 65 44 8b 25 a4 a0 9a 7c bf 07 00 00 00 44 89 e6 e8 6b d1 1d RSP: 0018:ffffc900136973c0 EFLAGS: 00010246 RAX: ffffffff8369179e RBX: 00000000000000dc RCX: 0000000000080000 RDX: ffffc9000d8ed000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900136974b0 R08: 0000000000000007 R09: 00000000000000dc R10: 00000000fffffffc R11: 0000000000000002 R12: dffffc0000000000 R13: 0000000000000007 R14: ffff88804b871000 R15: 000000000000006b FS: 00007f8bba1ea6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c29fc81 CR3: 0000000048984000 CR4: 00000000003506f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000086 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400