ocfs2: Unmounting device (7,1) on (node local) VFS: Busy inodes after unmount of loop1 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:505! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4273 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:generic_shutdown_super+0x334/0x340 fs/super.c:503 Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 65 6c f1 ff 49 8b 16 48 81 c3 a8 06 00 00 48 c7 c7 a0 4e 99 8a 48 89 de e8 6c 98 40 08 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 41 57 41 56 53 48 89 fb 49 RSP: 0018:ffffc90004257d18 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff8880511206a8 RCX: 51c8aa4772452e00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100a2240fb R08: ffffc90004257a27 R09: 1ffff9200084af44 R10: dffffc0000000000 R11: fffff5200084af45 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d01a300 R15: ffff8880511207d8 FS: 000055558f49a500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1a5ddd3000 CR3: 000000005c454000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kill_block_super+0x7c/0xe0 fs/super.c:1470 deactivate_locked_super+0x93/0xf0 fs/super.c:332 cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191 task_work_run+0x1d0/0x260 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f0e0799e017 Code: a2 c7 05 dc 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe70df81a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f0e07a32120 RCX: 00007f0e0799e017 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe70df8260 RBP: 00007ffe70df8260 R08: 00007ffe70df9260 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe70df92f0 R13: 00007f0e07a32120 R14: 0000000000014487 R15: 00007ffe70df9330 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x334/0x340 fs/super.c:503 Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 65 6c f1 ff 49 8b 16 48 81 c3 a8 06 00 00 48 c7 c7 a0 4e 99 8a 48 89 de e8 6c 98 40 08 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 41 57 41 56 53 48 89 fb 49 RSP: 0018:ffffc90004257d18 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff8880511206a8 RCX: 51c8aa4772452e00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100a2240fb R08: ffffc90004257a27 R09: 1ffff9200084af44 R10: dffffc0000000000 R11: fffff5200084af45 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d01a300 R15: ffff8880511207d8 FS: 000055558f49a500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0f8efe8158 CR3: 000000005c454000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400