------------[ cut here ]------------
truncate spotted in mem i_size < btree i_size: 1 < 33554432
WARNING: CPU: 0 PID: 18615 at fs/bcachefs/fs-io.c:437 bchfs_truncate+0x7ad/0xd70 fs/bcachefs/fs-io.c:437
Modules linked in:
CPU: 0 PID: 18615 Comm: syz-executor.4 Not tainted 6.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:bchfs_truncate+0x7ad/0xd70 fs/bcachefs/fs-io.c:437
Code: 24 38 84 c0 0f 85 d3 fc ff ff e8 8e b7 8b fd c6 05 76 bc cb 0b 01 90 48 c7 c7 c0 e4 7f 8b 4c 89 ea 4c 89 fe e8 f4 d0 4d fd 90 <0f> 0b 90 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 48 48 c1 ea
RSP: 0018:ffffc900038d7758 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888075f46590 RCX: ffffffff81500009
RDX: ffff88805ec55a00 RSI: ffffffff81500016 RDI: 0000000000000001
RBP: ffffc900038d7920 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000012b28 R12: ffff888075f46048
R13: 0000000002000000 R14: ffffc900038d7a18 R15: 0000000000000001
FS:  00007fe20b31e6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cc29000 CR3: 00000000557c4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_setattr+0x1ab/0x250 fs/bcachefs/fs.c:916
 notify_change+0x742/0x11f0 fs/attr.c:497
 do_truncate+0x15c/0x220 fs/open.c:65
 handle_truncate fs/namei.c:3308 [inline]
 do_open fs/namei.c:3654 [inline]
 path_openat+0x2505/0x29f0 fs/namei.c:3807
 do_filp_open+0x1dc/0x430 fs/namei.c:3834
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_sys_openat fs/open.c:1436 [inline]
 __se_sys_openat fs/open.c:1431 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1431
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe20a67cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe20b31e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe20a7b4140 RCX: 00007fe20a67cee9
RDX: 000000000000275a RSI: 0000000020000280 RDI: ffffffffffffff9c
RBP: 00007fe20a6c947f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe20a7b4140 R15: 00007ffc54083018
 </TASK>