------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_trans_commit.c:348!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 13 Comm: kworker/u4:1 Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #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
Workqueue: writeback wb_workfn (flush-bcachefs-1)
RIP: 0010:btree_insert_entry_checks fs/bcachefs/btree_trans_commit.c:343 [inline]
RIP: 0010:bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:725 [inline]
RIP: 0010:do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:854 [inline]
RIP: 0010:__bch2_trans_commit+0x86e5/0x8870 fs/bcachefs/btree_trans_commit.c:1085
Code: 97 fd eb 0c e8 3c 6e 97 fd eb 05 e8 35 6e 97 fd 49 bd 00 00 00 00 00 fc ff df 4c 8b 64 24 48 e9 e1 af ff ff e8 1c 6e 97 fd 90 <0f> 0b e8 14 6e 97 fd 90 0f 0b e8 0c 6e 97 fd 90 0f 0b e8 04 6e 97
RSP: 0018:ffffc900001f6d00 EFLAGS: 00010293
RAX: ffffffff8428c554 RBX: ffffffff84288725 RCX: ffff88801af20000
RDX: 0000000000000000 RSI: ffffffff8db869c3 RDI: ffff88801af20000
RBP: ffffc900001f6ff0 R08: 0000000000000000 R09: ffffffff84288725
R10: dffffc0000000000 R11: ffffed100a649309 R12: ffff888056644020
R13: dffffc0000000000 R14: ffff8880566464d8 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf1d3ade9c CR3: 00000000124aa000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 bch2_trans_commit fs/bcachefs/btree_update.h:241 [inline]
 bch2_write_inode+0x64a/0xad0 fs/bcachefs/fs.c:136
 bch2_vfs_write_inode+0x84/0xd0 fs/bcachefs/fs.c:2148
 write_inode fs/fs-writeback.c:1525 [inline]
 __writeback_single_inode+0x6ee/0xff0 fs/fs-writeback.c:1745
 writeback_sb_inodes+0x6b5/0x1000 fs/fs-writeback.c:1976
 wb_writeback+0x43b/0xaf0 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x409/0xef0 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:btree_insert_entry_checks fs/bcachefs/btree_trans_commit.c:343 [inline]
RIP: 0010:bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:725 [inline]
RIP: 0010:do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:854 [inline]
RIP: 0010:__bch2_trans_commit+0x86e5/0x8870 fs/bcachefs/btree_trans_commit.c:1085
Code: 97 fd eb 0c e8 3c 6e 97 fd eb 05 e8 35 6e 97 fd 49 bd 00 00 00 00 00 fc ff df 4c 8b 64 24 48 e9 e1 af ff ff e8 1c 6e 97 fd 90 <0f> 0b e8 14 6e 97 fd 90 0f 0b e8 0c 6e 97 fd 90 0f 0b e8 04 6e 97
RSP: 0018:ffffc900001f6d00 EFLAGS: 00010293
RAX: ffffffff8428c554 RBX: ffffffff84288725 RCX: ffff88801af20000
RDX: 0000000000000000 RSI: ffffffff8db869c3 RDI: ffff88801af20000
RBP: ffffc900001f6ff0 R08: 0000000000000000 R09: ffffffff84288725
R10: dffffc0000000000 R11: ffffed100a649309 R12: ffff888056644020
R13: dffffc0000000000 R14: ffff8880566464d8 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf1d3ade9c CR3: 0000000051ba6000 CR4: 0000000000352ef0