------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_cache.c:614! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 UID: 0 PID: 8606 Comm: syz-executor Not tainted 6.12.0-rc7-syzkaller-00070-g0a9b9d17f3a7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:bch2_fs_btree_cache_exit+0x1521/0x1530 fs/bcachefs/btree_cache.c:613 Code: fd 90 0f 0b e8 90 d3 80 fd 90 0f 0b e8 88 d3 80 fd 90 0f 0b e8 80 d3 80 fd 90 0f 0b e8 78 d3 80 fd 90 0f 0b e8 70 d3 80 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc90004c8fc38 EFLAGS: 00010293 RAX: ffffffff841416a0 RBX: 0000000000000002 RCX: ffff88802cbfda00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff88807067b000 R08: ffffffff84140d4c R09: 1ffff110088803b6 R10: dffffc0000000000 R11: ffffed10088803b7 R12: ffff88807067b228 R13: dffffc0000000000 R14: ffff888044401c78 R15: ffff888044400000 FS: 000055556f91b500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f262dd63f98 CR3: 000000002f5ee000 CR4: 0000000000350ef0 Call Trace: __bch2_fs_free fs/bcachefs/super.c:556 [inline] bch2_fs_release+0x20e/0x7d0 fs/bcachefs/super.c:610 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x231/0x480 lib/kobject.c:737 deactivate_locked_super+0xc6/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x251/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f061277fa47 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:00007ffd8836af08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f061277fa47 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd8836afc0 RBP: 00007ffd8836afc0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd8836c040 R13: 00007f06127f15fc R14: 0000000000085f29 R15: 00007ffd8836c080 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_fs_btree_cache_exit+0x1521/0x1530 fs/bcachefs/btree_cache.c:613 Code: fd 90 0f 0b e8 90 d3 80 fd 90 0f 0b e8 88 d3 80 fd 90 0f 0b e8 80 d3 80 fd 90 0f 0b e8 78 d3 80 fd 90 0f 0b e8 70 d3 80 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc90004c8fc38 EFLAGS: 00010293 RAX: ffffffff841416a0 RBX: 0000000000000002 RCX: ffff88802cbfda00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff88807067b000 R08: ffffffff84140d4c R09: 1ffff110088803b6 R10: dffffc0000000000 R11: ffffed10088803b7 R12: ffff88807067b228 R13: dffffc0000000000 R14: ffff888044401c78 R15: ffff888044400000 FS: 000055556f91b500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020388030 CR3: 000000002f5ee000 CR4: 0000000000350ef0