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kernel BUG at fs/bcachefs/fs.c:78!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5313 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #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+0xba5/0xbb0 fs/bcachefs/fs.c:78
Code: 89 f2 e9 7b fb ff ff 89 f9 80 e1 07 38 c1 0f 8c 7b fc ff ff 48 89 fb e8 49 72 f0 fd 48 89 df e9 6b fc ff ff e8 cc 7d 8e fd 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000f61f960 EFLAGS: 00010287
RAX: ffffffff84314104 RBX: 0000000000001002 RCX: 0000000000100000
RDX: ffffc9000e564000 RSI: 0000000000006ab3 RDI: 0000000000006ab4
RBP: ffffc9000f61fa70 R08: 0000000000001000 R09: 00000000ffffffff
R10: 0000000000001000 R11: 00000000ffffffff R12: ffff888054084f30
R13: ffff888055794000 R14: 1ffff92001ec3f34 R15: 0000000000001001
FS:  00007f1441d2c6c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1441d2bfc8 CR3: 0000000040145000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __bch2_unlink+0x454/0x560 fs/bcachefs/fs.c:840
 bch2_unlink+0xb1/0xf0 fs/bcachefs/fs.c:868
 vfs_unlink+0x391/0x650 fs/namei.c:4579
 do_unlinkat+0x350/0x560 fs/namei.c:4643
 __do_sys_unlink fs/namei.c:4689 [inline]
 __se_sys_unlink fs/namei.c:4687 [inline]
 __x64_sys_unlink+0x47/0x50 fs/namei.c:4687
 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: 0033:0x7f1440f8e969
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:00007f1441d2c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f14411b6080 RCX: 00007f1440f8e969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000500
RBP: 00007f1441010ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f14411b6080 R15: 00007ffe24098238
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_inode_update_after_write+0xba5/0xbb0 fs/bcachefs/fs.c:78
Code: 89 f2 e9 7b fb ff ff 89 f9 80 e1 07 38 c1 0f 8c 7b fc ff ff 48 89 fb e8 49 72 f0 fd 48 89 df e9 6b fc ff ff e8 cc 7d 8e fd 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000f61f960 EFLAGS: 00010287
RAX: ffffffff84314104 RBX: 0000000000001002 RCX: 0000000000100000
RDX: ffffc9000e564000 RSI: 0000000000006ab3 RDI: 0000000000006ab4
RBP: ffffc9000f61fa70 R08: 0000000000001000 R09: 00000000ffffffff
R10: 0000000000001000 R11: 00000000ffffffff R12: ffff888054084f30
R13: ffff888055794000 R14: 1ffff92001ec3f34 R15: 0000000000001001
FS:  00007f1441d2c6c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f143d3f4fc8 CR3: 0000000040145000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400