bcachefs (loop0): bucket 0:34 gen 1 (mem gen 0) data type user: stale dirty ptr (gen 0)
  while marking u64s 7 type extent 4099:8:U32_MAX len 8 ver 0: durability: 1 crc: c_size 8 size 8 offset 0 nonce 0 csum none 0:0  compress incompressible ptr: 0:34:0 gen 0
  
------------[ cut here ]------------
kernel BUG at fs/bcachefs/quota.c:232!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5313 Comm: syz.0.0 Not tainted 6.15.0-rc7-syzkaller-00014-gd608703fcdd9 #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_quota_check_limit+0xd64/0xd90 fs/bcachefs/quota.c:232
Code: dd fd e9 19 fb ff ff 48 8b 0c 24 80 e1 07 38 c1 0f 8c 1a fb ff ff 48 8b 3c 24 e8 e7 c0 dd fd e9 0c fb ff ff e8 4d c6 7b fd 90 <0f> 0b e8 45 c6 7b fd 90 0f 0b e8 3d c6 7b fd 90 0f 0b e8 35 c6 7b
RSP: 0018:ffffc9000f4bf218 EFLAGS: 00010283
RAX: ffffffff84442b83 RBX: ffffc9000f4bf340 RCX: 0000000000100000
RDX: ffffc9000e3f3000 RSI: 0000000000010cbe RDI: 0000000000010cbf
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffffffffffff8
R10: dffffc0000000000 R11: fffffbfff1efe66f R12: fffffffffffffff8
R13: fffffffffffffff8 R14: 0000000000000000 R15: ffff888011355800
FS:  00007f4e564a96c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e56487fc8 CR3: 00000000344a2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_quota_acct+0x3ed/0x750 fs/bcachefs/quota.c:299
 __bch2_i_sectors_acct+0x2b9/0x4d0 fs/bcachefs/fs-io.c:178
 bch2_i_sectors_acct fs/bcachefs/fs-io.h:138 [inline]
 bchfs_truncate+0x7ff/0xcc0 fs/bcachefs/fs-io.c:510
 notify_change+0xb36/0xe40 fs/attr.c:552
 do_truncate+0x19a/0x220 fs/open.c:65
 handle_truncate fs/namei.c:3501 [inline]
 do_open fs/namei.c:3884 [inline]
 path_openat+0x306c/0x3830 fs/namei.c:4039
 do_filp_open+0x1fa/0x410 fs/namei.c:4066
 do_sys_openat2+0x121/0x1c0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1455
 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: 0033:0x7f4e5558e969
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:00007f4e564a9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4e557b6080 RCX: 00007f4e5558e969
RDX: 0000000000000300 RSI: 0000200000000140 RDI: ffffffffffffff9c
RBP: 00007f4e55610ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4e557b6080 R15: 00007ffd8d84efb8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_quota_check_limit+0xd64/0xd90 fs/bcachefs/quota.c:232
Code: dd fd e9 19 fb ff ff 48 8b 0c 24 80 e1 07 38 c1 0f 8c 1a fb ff ff 48 8b 3c 24 e8 e7 c0 dd fd e9 0c fb ff ff e8 4d c6 7b fd 90 <0f> 0b e8 45 c6 7b fd 90 0f 0b e8 3d c6 7b fd 90 0f 0b e8 35 c6 7b
RSP: 0018:ffffc9000f4bf218 EFLAGS: 00010283
RAX: ffffffff84442b83 RBX: ffffc9000f4bf340 RCX: 0000000000100000
RDX: ffffc9000e3f3000 RSI: 0000000000010cbe RDI: 0000000000010cbf
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffffffffffff8
R10: dffffc0000000000 R11: fffffbfff1efe66f R12: fffffffffffffff8
R13: fffffffffffffff8 R14: 0000000000000000 R15: ffff888011355800
FS:  00007f4e564a96c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e56487fc8 CR3: 00000000344a2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400