------------[ cut here ]------------ kernel BUG at fs/ocfs2/alloc.c:6010! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4190 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 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 6a b4 aa fe e9 16 fc ff ff e8 f0 4b 66 fe 0f 0b e8 e9 4b 66 fe <0f> 0b 65 8b 1d e8 96 f0 7c bf 07 00 00 00 89 de e8 34 4f 66 fe 83 RSP: 0018:ffffc90002effa40 EFLAGS: 00010293 RAX: ffffffff83117e67 RBX: ffff8880560a4a00 RCX: ffff88807a22bb80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90002effc58 R08: dffffc0000000000 R09: fffff520005dff31 R10: fffff520005dff31 R11: 1ffff920005dff30 R12: 0000000000000001 R13: ffff88805de15df8 R14: ffff888057e40000 R15: ffff88805fc9f400 FS: 0000555559d94500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9259c70478 CR3: 00000000628e6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_flush_truncate_log+0x4b/0x60 fs/ocfs2/alloc.c:6075 ocfs2_sync_fs+0x113/0x310 fs/ocfs2/super.c:403 sync_filesystem+0x1be/0x220 fs/sync.c:66 generic_shutdown_super+0x6b/0x300 fs/super.c:448 kill_block_super+0x7c/0xe0 fs/super.c:1427 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1139 task_work_run+0x125/0x1a0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fbee21c42f7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffcc928f3b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fbee2245d7d RCX: 00007fbee21c42f7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcc928f470 RBP: 00007ffcc928f470 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcc9290500 R13: 00007fbee2245d7d R14: 000000000003bfcf R15: 00007ffcc9290540 Modules linked in: ---[ end trace 3a3013d1ec12a0e0 ]--- 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 6a b4 aa fe e9 16 fc ff ff e8 f0 4b 66 fe 0f 0b e8 e9 4b 66 fe <0f> 0b 65 8b 1d e8 96 f0 7c bf 07 00 00 00 89 de e8 34 4f 66 fe 83 RSP: 0018:ffffc90002effa40 EFLAGS: 00010293 RAX: ffffffff83117e67 RBX: ffff8880560a4a00 RCX: ffff88807a22bb80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90002effc58 R08: dffffc0000000000 R09: fffff520005dff31 R10: fffff520005dff31 R11: 1ffff920005dff30 R12: 0000000000000001 R13: ffff88805de15df8 R14: ffff888057e40000 R15: ffff88805fc9f400 FS: 0000555559d94500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ff1e2e3950 CR3: 00000000628e6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400