------------[ cut here ]------------ WARNING: CPU: 0 PID: 16487 at fs/hfsplus/extents.c:346 hfsplus_free_extents+0x708/0xae0 fs/hfsplus/extents.c:346 Modules linked in: CPU: 0 PID: 16487 Comm: syz-executor.4 Not tainted 6.8.0-rc6-syzkaller-00238-g5ad3cb0ed525 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:hfsplus_free_extents+0x708/0xae0 fs/hfsplus/extents.c:346 Code: cb 44 89 ef 89 de e8 a7 95 1d ff 41 39 dd 75 22 49 83 c7 28 e8 d9 93 1d ff 41 bc 05 00 00 00 e9 de f9 ff ff e8 c9 93 1d ff 90 <0f> 0b 90 e9 7d f9 ff ff 44 89 ef 89 de e8 76 95 1d ff 41 29 dd 73 RSP: 0018:ffffc9000bd6f7f0 EFLAGS: 00010293 RAX: ffffffff8275d887 RBX: ffff88802c8bc820 RCX: ffff88802b52d940 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888023aa2048 RBP: ffff888011442000 R08: ffff888023aa204f R09: 1ffff11004754409 R10: dffffc0000000000 R11: ffffed100475440a R12: dffffc0000000000 R13: 0000000000000045 R14: ffffc9000bd6f910 R15: ffff88802a259458 FS: 00007f5f4dc376c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020031000 CR3: 000000007e88a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_file_truncate+0x7d0/0xb50 fs/hfsplus/extents.c:591 hfsplus_write_begin+0xca/0xd0 fs/hfsplus/inode.c:51 cont_expand_zero fs/buffer.c:2492 [inline] cont_write_begin+0x319/0x890 fs/buffer.c:2555 hfsplus_write_begin+0x8a/0xd0 fs/hfsplus/inode.c:47 generic_cont_expand_simple+0x18f/0x2b0 fs/buffer.c:2456 hfsplus_setattr+0x16d/0x260 fs/hfsplus/inode.c:259 notify_change+0xb9d/0xe70 fs/attr.c:499 do_truncate+0x220/0x310 fs/open.c:66 do_sys_ftruncate+0x2f7/0x390 fs/open.c:194 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f5f4ce7dda9 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:00007f5f4dc370c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007f5f4cfac050 RCX: 00007f5f4ce7dda9 RDX: 0000000000000000 RSI: 0000000002007ffb RDI: 0000000000000005 RBP: 00007f5f4ceca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f5f4cfac050 R15: 00007ffc474dae68