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kernel BUG at fs/ocfs2/suballoc.c:1349!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7812 Comm: syz.9.263 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:ocfs2_block_group_set_bits+0x57e/0x6b0 fs/ocfs2/suballoc.c:1349
Code: ff 44 89 e1 80 e1 07 fe c1 38 c1 0f 8c 4c fd ff ff 4c 89 e7 e8 43 c6 7d fe e9 3f fd ff ff e8 e9 8e 25 fe 0f 0b e8 e2 8e 25 fe <0f> 0b 65 44 8b 25 a4 22 a2 7c bf 07 00 00 00 44 89 e6 e8 7b 92 25
RSP: 0000:ffffc900033273c0 EFLAGS: 00010246
RAX: ffffffff8361931e RBX: 00000000000000a4 RCX: 0000000000080000
RDX: ffffc9001304a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900033274b0 R08: 0000000000000007 R09: 00000000000000a4
R10: 00000000fffffffc R11: 0000000000000002 R12: dffffc0000000000
R13: 0000000000000007 R14: ffff8880656a6000 R15: 000000000000006b
FS:  00007fb83257c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557efadee8 CR3: 0000000066f4d000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 ocfs2_move_extent fs/ocfs2/move_extents.c:693 [inline]
 __ocfs2_move_extents_range+0x2a13/0x35d0 fs/ocfs2/move_extents.c:866
 ocfs2_move_extents+0x3a7/0x9a0 fs/ocfs2/move_extents.c:938
 ocfs2_ioctl_move_extents+0x527/0x6c0 fs/ocfs2/move_extents.c:1064
 ocfs2_ioctl+0x199/0x7e0 fs/ocfs2/ioctl.c:945
 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+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb83179c819
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:00007fb83257c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb831a16090 RCX: 00007fb83179c819
RDX: 00002000000000c0 RSI: 0000000040406f06 RDI: 0000000000000004
RBP: 00007fb831832c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb831a16128 R14: 00007fb831a16090 R15: 00007ffc62324b08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_block_group_set_bits+0x57e/0x6b0 fs/ocfs2/suballoc.c:1349
Code: ff 44 89 e1 80 e1 07 fe c1 38 c1 0f 8c 4c fd ff ff 4c 89 e7 e8 43 c6 7d fe e9 3f fd ff ff e8 e9 8e 25 fe 0f 0b e8 e2 8e 25 fe <0f> 0b 65 44 8b 25 a4 22 a2 7c bf 07 00 00 00 44 89 e6 e8 7b 92 25
RSP: 0000:ffffc900033273c0 EFLAGS: 00010246
RAX: ffffffff8361931e RBX: 00000000000000a4 RCX: 0000000000080000
RDX: ffffc9001304a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900033274b0 R08: 0000000000000007 R09: 00000000000000a4
R10: 00000000fffffffc R11: 0000000000000002 R12: dffffc0000000000
R13: 0000000000000007 R14: ffff8880656a6000 R15: 000000000000006b
FS:  00007fb83257c6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7ff106f000 CR3: 0000000066f4d000 CR4: 00000000003506f0