------------[ cut here ]------------
WARNING: CPU: 0 PID: 8365 at fs/bcachefs/fs-io.c:327 __bch2_truncate_folio+0x1a33/0x1d80 fs/bcachefs/fs-io.c:327
Modules linked in:
CPU: 0 PID: 8365 Comm: syz-executor.3 Not tainted 6.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__bch2_truncate_folio+0x1a33/0x1d80 fs/bcachefs/fs-io.c:327
Code: 41 5f 5d c3 cc cc cc cc e8 ba 8f 6f fd 48 c7 c7 78 1f c0 8d e8 1e 2f ea ff 89 05 f8 28 6a 10 e9 ed ea ff ff e8 9e 8f 6f fd 90 <0f> 0b 90 e9 0a fa ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c f0
RSP: 0018:ffffc90004ab7180 EFLAGS: 00010283
RAX: ffffffff842685f2 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000a3f3000 RSI: 00000000000096f3 RDI: 00000000000096f4
RBP: ffffc90004ab7410 R08: ffffffff84267ff7 R09: 1ffffd4000175590
R10: dffffc0000000000 R11: fffff94000175591 R12: 1ffff1100ba1f0f7
R13: ffff88806b88075a R14: 0000000000000000 R15: ffff88805d0f87b8
FS:  00007f6f334086c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31424000 CR3: 000000006a9e0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_truncate_folios fs/bcachefs/fs-io.c:366 [inline]
 bchfs_fpunch fs/bcachefs/fs-io.c:520 [inline]
 bch2_fallocate_dispatch+0x6fb/0x3810 fs/bcachefs/fs-io.c:785
 vfs_fallocate+0x564/0x6c0 fs/open.c:330
 do_vfs_ioctl+0x2592/0x2e50 fs/ioctl.c:886
 __do_sys_ioctl fs/ioctl.c:905 [inline]
 __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f3267cee9
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:00007f6f334080c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6f327abf80 RCX: 00007f6f3267cee9
RDX: 00000000200000c0 RSI: 0000000040305829 RDI: 0000000000000004
RBP: 00007f6f326c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6f327abf80 R15: 00007ffec9901048
 </TASK>