------------[ cut here ]------------
WARNING: CPU: 1 PID: 6550 at fs/bcachefs/fs-io.c:327 __bch2_truncate_folio+0x1064/0x1220 fs/bcachefs/fs-io.c:327
Modules linked in:
CPU: 1 PID: 6550 Comm: syz-executor.2 Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__bch2_truncate_folio+0x1064/0x1220 fs/bcachefs/fs-io.c:327
Code: e8 b1 c7 8b fd 90 0f 0b e8 59 9b e7 fd e9 80 f5 ff ff e8 7f 9b e7 fd e9 da f4 ff ff e8 95 c7 8b fd 90 0f 0b e8 8d c7 8b fd 90 <0f> 0b 90 e9 33 f7 ff ff e8 7f c7 8b fd 90 0f 0b e8 f7 9a e7 fd e9
RSP: 0018:ffffc90004307c58 EFLAGS: 00010283
RAX: 0000000000025d1c RBX: ffffea0001641640 RCX: ffffc9000ab4f000
RDX: 0000000000040000 RSI: ffffffff84020d63 RDI: 0000000000000006
RBP: ffffc90004307d50 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: ffff88805df88700
R13: ffff8880638a2c70 R14: 0000000000000000 R15: ffff8880638a2cc0
FS:  00007f8aaf02f6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000a000 CR3: 00000000597ee000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_truncate_folios+0x30/0xa0 fs/bcachefs/fs-io.c:366
 bchfs_fpunch fs/bcachefs/fs-io.c:520 [inline]
 bch2_fallocate_dispatch+0xa33/0xf70 fs/bcachefs/fs-io.c:785
 vfs_fallocate+0x4b8/0xfb0 fs/open.c:330
 ksys_fallocate fs/open.c:353 [inline]
 __do_sys_fallocate fs/open.c:361 [inline]
 __se_sys_fallocate fs/open.c:359 [inline]
 __x64_sys_fallocate+0xd5/0x140 fs/open.c:359
 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: 0033:0x7f8aae27cee9
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:00007f8aaf02f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f8aae3b4070 RCX: 00007f8aae27cee9
RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007f8aae2c947f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8aae3b4070 R15: 00007ffd1cb91cd8
 </TASK>