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kernel BUG at fs/bcachefs/fs.c:1017!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:bch2_rename2+0x131d/0x1340 fs/bcachefs/fs.c:1017
Code: 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 43 fa ff ff 4c 89 ff 48 89 f3 e8 71 79 ef fd 48 89 de e9 30 fa ff ff e8 94 84 8d fd 90 <0f> 0b e8 8c 84 8d fd 90 0f 0b e8 84 84 8d fd e9 93 f9 ff ff 66 66
RSP: 0018:ffffc9000d35f680 EFLAGS: 00010287
RAX: ffffffff84323a3c RBX: 0000000000001001 RCX: 0000000000100000
RDX: ffffc9000eb0b000 RSI: 0000000000002e77 RDI: 0000000000002e78
RBP: ffffc9000d35fb70 R08: ffff8880554dc1d7 R09: 1ffff1100aa9b83a
R10: dffffc0000000000 R11: ffffed100aa9b83b R12: ffff888044570f30
R13: dffffc0000000000 R14: 0000000000001002 R15: ffff888044570000
FS:  00007f244edc36c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f244edc2fc8 CR3: 0000000042496000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rename+0xb99/0xec0 fs/namei.c:5121
 do_renameat2+0x878/0xc50 fs/namei.c:5270
 __do_sys_renameat2 fs/namei.c:5304 [inline]
 __se_sys_renameat2 fs/namei.c:5301 [inline]
 __x64_sys_renameat2+0xce/0xe0 fs/namei.c:5301
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f244df8e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f244edc3038 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007f244e1b6080 RCX: 00007f244df8e969
RDX: 0000000000000006 RSI: 00002000000004c0 RDI: 0000000000000006
RBP: 00007f244e010ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000040 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f244e1b6080 R15: 00007ffe83b23ed8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_rename2+0x131d/0x1340 fs/bcachefs/fs.c:1017
Code: 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 43 fa ff ff 4c 89 ff 48 89 f3 e8 71 79 ef fd 48 89 de e9 30 fa ff ff e8 94 84 8d fd 90 <0f> 0b e8 8c 84 8d fd 90 0f 0b e8 84 84 8d fd e9 93 f9 ff ff 66 66
RSP: 0018:ffffc9000d35f680 EFLAGS: 00010287
RAX: ffffffff84323a3c RBX: 0000000000001001 RCX: 0000000000100000
RDX: ffffc9000eb0b000 RSI: 0000000000002e77 RDI: 0000000000002e78
RBP: ffffc9000d35fb70 R08: ffff8880554dc1d7 R09: 1ffff1100aa9b83a
R10: dffffc0000000000 R11: ffffed100aa9b83b R12: ffff888044570f30
R13: dffffc0000000000 R14: 0000000000001002 R15: ffff888044570000
FS:  00007f244edc36c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f244edc2fc8 CR3: 0000000042496000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400