------------[ cut here ]------------
WARNING: CPU: 1 PID: 7768 at fs/hfsplus/extents.c:346 hfsplus_free_extents+0x708/0xae0 fs/hfsplus/extents.c:346
Modules linked in:
CPU: 1 UID: 0 PID: 7768 Comm: syz.2.204 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:hfsplus_free_extents+0x708/0xae0 fs/hfsplus/extents.c:346
Code: cb 44 89 ef 89 de e8 d7 16 1d ff 41 39 dd 75 22 49 83 c7 28 e8 09 15 1d ff 41 bc 05 00 00 00 e9 de f9 ff ff e8 f9 14 1d ff 90 <0f> 0b 90 e9 7d f9 ff ff 44 89 ef 89 de e8 a6 16 1d ff 41 29 dd 73
RSP: 0018:ffffc900042177f0 EFLAGS: 00010287
RAX: ffffffff827837e7 RBX: ffff88805dbcf820 RCX: 0000000000080000
RDX: ffffc90010b11000 RSI: 000000000000e627 RDI: 000000000000e628
RBP: ffff88807d0ca000 R08: ffff88807cbcc04f R09: 1ffff1100f979809
R10: dffffc0000000000 R11: ffffed100f97980a R12: dffffc0000000000
R13: 000000000000014e R14: 000000000000014e R15: ffff88805abc06d8
FS:  00007f88637286c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30614ff8 CR3: 0000000069f84000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_file_truncate+0x86c/0xc70 fs/hfsplus/extents.c:592
 hfsplus_write_begin+0xa4/0xb0 fs/hfsplus/inode.c:50
 cont_expand_zero fs/buffer.c:2509 [inline]
 cont_write_begin+0x338/0x9d0 fs/buffer.c:2572
 hfsplus_write_begin+0x68/0xb0 fs/hfsplus/inode.c:46
 generic_cont_expand_simple+0x18f/0x2b0 fs/buffer.c:2473
 hfsplus_setattr+0x16d/0x270 fs/hfsplus/inode.c:258
 notify_change+0xbca/0xe90 fs/attr.c:552
 do_truncate fs/open.c:65 [inline]
 do_ftruncate+0x462/0x580 fs/open.c:181
 do_sys_ftruncate fs/open.c:196 [inline]
 __do_sys_ftruncate fs/open.c:201 [inline]
 __se_sys_ftruncate fs/open.c:199 [inline]
 __x64_sys_ftruncate+0x94/0xf0 fs/open.c:199
 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: 0033:0x7f886297e819
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:00007f8863728038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f8862b36160 RCX: 00007f886297e819
RDX: 0000000000000000 RSI: 0000000002088002 RDI: 0000000000000006
RBP: 00007f88629f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8862b36160 R15: 00007ffc80a2cb48
 </TASK>