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kernel BUG at fs/bcachefs/fs.c:61!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5347 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00400-g3088d26962e8 #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_inode_update_after_write+0xc89/0xc90 fs/bcachefs/fs.c:61
Code: ff 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c cc fb ff ff 48 89 f7 49 89 f6 e8 95 ae bc fd 4c 89 f6 e9 b9 fb ff ff e8 c8 6f 52 fd 90 <0f> 0b e8 00 44 bf 07 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000fea78c0 EFLAGS: 00010287
RAX: ffffffff84704c38 RBX: 0000000000001005 RCX: 0000000000100000
RDX: ffffc9000f63d000 RSI: 0000000000005540 RDI: 0000000000005541
RBP: ffffc9000fea7a10 R08: ffffffff847040d2 R09: 00000000ffffffff
R10: 0000000000001000 R11: 00000000ffffffff R12: 0000000000001002
R13: ffff888055518000 R14: ffff8880555196c8 R15: ffffc9000fea7b90
FS:  00007f737d1136c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f737d112fd8 CR3: 00000000442e8000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __bch2_unlink+0x459/0x520 fs/bcachefs/fs.c:818
 bch2_unlink+0xac/0xf0 fs/bcachefs/fs.c:841
 vfs_unlink+0x365/0x650 fs/namei.c:4544
 do_unlinkat+0x442/0x7b0 fs/namei.c:4608
 __do_sys_unlink fs/namei.c:4654 [inline]
 __se_sys_unlink fs/namei.c:4652 [inline]
 __x64_sys_unlink+0x47/0x50 fs/namei.c:4652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f737c38e169
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:00007f737d113038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f737c5b6240 RCX: 00007f737c38e169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000500
RBP: 00007f737c410a68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f737c5b6240 R15: 00007fff0c5c4978
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_inode_update_after_write+0xc89/0xc90 fs/bcachefs/fs.c:61
Code: ff 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c cc fb ff ff 48 89 f7 49 89 f6 e8 95 ae bc fd 4c 89 f6 e9 b9 fb ff ff e8 c8 6f 52 fd 90 <0f> 0b e8 00 44 bf 07 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000fea78c0 EFLAGS: 00010287
RAX: ffffffff84704c38 RBX: 0000000000001005 RCX: 0000000000100000
RDX: ffffc9000f63d000 RSI: 0000000000005540 RDI: 0000000000005541
RBP: ffffc9000fea7a10 R08: ffffffff847040d2 R09: 00000000ffffffff
R10: 0000000000001000 R11: 00000000ffffffff R12: 0000000000001002
R13: ffff888055518000 R14: ffff8880555196c8 R15: ffffc9000fea7b90
FS:  00007f737d1136c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f737d112fd8 CR3: 00000000442e8000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400