Filesystem bcachefs get_tree() didn't set fc->root, returned 1
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kernel BUG at fs/super.c:1810!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 6469 Comm: syz.3.140 Not tainted 6.11.0-rc7-syzkaller-00039-g77f587896757 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:vfs_get_tree+0x29f/0x2b0 fs/super.c:1810
Code: 1e 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 61 ed ff 48 8b 33 48 c7 c7 20 9d f8 8b 44 89 e2 e8 52 bb a3 09 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc9000346fd08 EFLAGS: 00010246
RAX: 000000000000003e RBX: ffffffff8ed473c0 RCX: 08467b1c450cc900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff11006037f16 R08: ffffffff8174016c R09: 1ffff9200068df40
R10: dffffc0000000000 R11: fffff5200068df41 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8880301bf898 R15: ffff8880301bf8b0
FS:  000055555c14c500(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcdc21ff000 CR3: 000000002ec06000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_new_mount+0x2be/0xb40 fs/namespace.c:3472
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3106f7f69a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc5ae43ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc5ae44080 RCX: 00007f3106f7f69a
RDX: 00000000200058c0 RSI: 0000000020005900 RDI: 00007ffc5ae44040
RBP: 00000000200058c0 R08: 00007ffc5ae44080 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000020005900
R13: 00007ffc5ae44040 R14: 0000000000005956 R15: 00000000200001c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vfs_get_tree+0x29f/0x2b0 fs/super.c:1810
Code: 1e 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 61 ed ff 48 8b 33 48 c7 c7 20 9d f8 8b 44 89 e2 e8 52 bb a3 09 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc9000346fd08 EFLAGS: 00010246
RAX: 000000000000003e RBX: ffffffff8ed473c0 RCX: 08467b1c450cc900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff11006037f16 R08: ffffffff8174016c R09: 1ffff9200068df40
R10: dffffc0000000000 R11: fffff5200068df41 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8880301bf898 R15: ffff8880301bf8b0
FS:  000055555c14c500(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78ad7ff000 CR3: 000000002ec06000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400