------------[ cut here ]------------ kernel BUG at fs/ocfs2/alloc.c:6010! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4777 Comm: kworker/u4:9 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: ocfs2_wq ocfs2_truncate_log_worker RIP: 0010:__ocfs2_flush_truncate_log+0xf37/0x1060 fs/ocfs2/alloc.c:6010 Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fc ff ff 4c 89 f7 e8 9a b0 aa fe e9 16 fc ff ff e8 90 47 66 fe 0f 0b e8 89 47 66 fe <0f> 0b 65 8b 1d c8 90 f0 7c bf 07 00 00 00 89 de e8 d4 4a 66 fe 83 RSP: 0018:ffffc9000331f980 EFLAGS: 00010293 RAX: ffffffff83118487 RBX: ffff888052f68a00 RCX: ffff888062c08000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000331fb90 R08: dffffc0000000000 R09: fffff52000663f19 R10: fffff52000663f19 R11: 1ffff92000663f18 R12: 0000000000000001 R13: ffff888060b924f8 R14: ffff88807d424000 R15: ffff888062616c00 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000d9000 CR3: 00000000510a3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_flush_truncate_log fs/ocfs2/alloc.c:6075 [inline] ocfs2_truncate_log_worker+0x9f/0x190 fs/ocfs2/alloc.c:6088 process_one_work+0x863/0x1000 kernel/workqueue.c:2310 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Modules linked in: ---[ end trace e94ee439153159f7 ]--- RIP: 0010:__ocfs2_flush_truncate_log+0xf37/0x1060 fs/ocfs2/alloc.c:6010 Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fc ff ff 4c 89 f7 e8 9a b0 aa fe e9 16 fc ff ff e8 90 47 66 fe 0f 0b e8 89 47 66 fe <0f> 0b 65 8b 1d c8 90 f0 7c bf 07 00 00 00 89 de e8 d4 4a 66 fe 83 RSP: 0018:ffffc9000331f980 EFLAGS: 00010293 RAX: ffffffff83118487 RBX: ffff888052f68a00 RCX: ffff888062c08000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000331fb90 R08: dffffc0000000000 R09: fffff52000663f19 R10: fffff52000663f19 R11: 1ffff92000663f18 R12: 0000000000000001 R13: ffff888060b924f8 R14: ffff88807d424000 R15: ffff888062616c00 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d03a7c6000 CR3: 0000000022a3c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400