------------[ cut here ]------------
WARNING: CPU: 0 PID: 8403 at fs/bcachefs/fs-io.c:315 __bch2_truncate_folio+0x22aa/0x26b0 fs/bcachefs/fs-io.c:315
Modules linked in:
CPU: 0 UID: 0 PID: 8403 Comm: syz.6.252 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__bch2_truncate_folio+0x22aa/0x26b0 fs/bcachefs/fs-io.c:315
Code: 41 5f 5d c3 cc cc cc cc e8 f3 40 6a fd 48 c7 c7 e5 24 10 8e e8 17 8b e8 ff 89 05 d1 a1 1c 16 e9 2c e0 ff ff e8 d7 40 6a fd 90 <0f> 0b 90 e9 88 f8 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ff
RSP: 0018:ffffc9000c4a7900 EFLAGS: 00010283
RAX: ffffffff843532b9 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9001c201000 RSI: 0000000000001990 RDI: 0000000000001991
RBP: ffffc9000c4a7bf0 R08: ffffffff84352b3c R09: 1ffffd40003ebd88
R10: dffffc0000000000 R11: fffff940003ebd89 R12: 1ffff1100b21596a
R13: ffffc9000c4a7b80 R14: ffff8880590acb50 R15: 0000000000000000
FS:  00007f91794f86c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c220220 CR3: 0000000059608000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_truncate_folios fs/bcachefs/fs-io.c:354 [inline]
 bchfs_fpunch+0x115/0x780 fs/bcachefs/fs-io.c:508
 bch2_fallocate_dispatch+0x3e4/0x540 fs/bcachefs/fs-io.c:782
 vfs_fallocate+0x569/0x6e0 fs/open.c:327
 ksys_fallocate fs/open.c:351 [inline]
 __do_sys_fallocate fs/open.c:356 [inline]
 __se_sys_fallocate fs/open.c:354 [inline]
 __x64_sys_fallocate+0xbc/0x110 fs/open.c:354
 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: 0033:0x7f9178785d29
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:00007f91794f8038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f9178975fa0 RCX: 00007f9178785d29
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000005
RBP: 00007f9178801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9178975fa0 R15: 00007ffeed7778d8
 </TASK>