------------[ cut here ]------------
WARNING: CPU: 1 PID: 4556 at fs/hfsplus/extents.c:346 hfsplus_free_extents+0x6e9/0xac0 fs/hfsplus/extents.c:346
Modules linked in:
CPU: 1 PID: 4556 Comm: syz.0.92 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:hfsplus_free_extents+0x6e9/0xac0 fs/hfsplus/extents.c:346
Code: 8b 1b 0f cb 89 ef 89 de e8 64 85 4d ff 39 dd 75 20 49 83 c7 28 e8 f7 83 4d ff 41 bc 05 00 00 00 e9 fa f9 ff ff e8 e7 83 4d ff <0f> 0b e9 9d f9 ff ff 89 ef 89 de e8 37 85 4d ff 29 dd 73 0a e8 ce
RSP: 0018:ffffc900039c7ad0 EFLAGS: 00010293

RAX: ffffffff822a3e39 RBX: ffff88802955c020 RCX: ffff888021385940
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807854c048
RBP: 0000000000000022 R08: dffffc0000000000 R09: ffffed100f0a980a
R10: ffffed100f0a980a R11: 1ffff1100f0a9809 R12: ffff888023b5c000
R13: 1ffff92000738f78 R14: 0000000000000022 R15: ffff88805c055e98
FS:  00007fdb9120e6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4eeef8e000 CR3: 0000000024a02000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_file_truncate+0x745/0xb40 fs/hfsplus/extents.c:592
 hfsplus_setattr+0x1c0/0x280 fs/hfsplus/inode.c:267
 notify_change+0xbcd/0xee0 fs/attr.c:505
 do_truncate+0x197/0x220 fs/open.c:65
 do_sys_ftruncate+0x31b/0x3d0 fs/open.c:193
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdb91fbf929
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:00007fdb9120e038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fdb921e7080 RCX: 00007fdb91fbf929
RDX: 0000000000000000 RSI: 00000000000081fd RDI: 0000000000000004
RBP: 00007fdb92041b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fdb921e7080 R15: 00007fff0442f008
 </TASK>