------------[ cut here ]------------ WARNING: CPU: 1 PID: 7083 at fs/hfsplus/extents.c:346 hfsplus_free_extents+0x71c/0xb00 fs/hfsplus/extents.c:346 Modules linked in: CPU: 1 UID: 0 PID: 7083 Comm: syz.3.153 Not tainted 6.15.0-rc2-syzkaller-00042-g1a1d569a75f3 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:hfsplus_free_extents+0x71c/0xb00 fs/hfsplus/extents.c:346 Code: cb 44 89 ef 89 de e8 03 54 1b ff 41 39 dd 75 22 49 83 c7 28 e8 35 52 1b ff 41 bc 05 00 00 00 e9 ca f9 ff ff e8 25 52 1b ff 90 <0f> 0b 90 e9 69 f9 ff ff 44 89 ef 89 de e8 d2 53 1b ff 41 29 dd 73 RSP: 0018:ffffc90004bf7730 EFLAGS: 00010287 RAX: ffffffff82a7f24b RBX: ffff88807ab85020 RCX: 0000000000080000 RDX: ffffc9000dc10000 RSI: 000000000000e8ba RDI: 000000000000e8bb RBP: ffff8880520b0000 R08: ffff888034b8204f R09: 1ffff11006970409 R10: dffffc0000000000 R11: ffffed100697040a R12: dffffc0000000000 R13: 0000000000000135 R14: 0000000000000135 R15: ffff888035098018 FS: 00007fd30294d6c0(0000) GS:ffff8881250c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4c6262d000 CR3: 000000005ba84000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_file_truncate+0x86a/0xc70 fs/hfsplus/extents.c:592 hfsplus_write_begin+0xa4/0xb0 fs/hfsplus/inode.c:50 cont_expand_zero fs/buffer.c:2493 [inline] cont_write_begin+0x32d/0xb40 fs/buffer.c:2556 hfsplus_write_begin+0x68/0xb0 fs/hfsplus/inode.c:46 generic_cont_expand_simple+0x191/0x2b0 fs/buffer.c:2457 hfsplus_setattr+0x16d/0x270 fs/hfsplus/inode.c:258 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x222/0x310 fs/open.c:65 do_ftruncate+0x4b8/0x5a0 fs/open.c:192 do_sys_ftruncate fs/open.c:207 [inline] __do_sys_ftruncate fs/open.c:212 [inline] __se_sys_ftruncate fs/open.c:210 [inline] __x64_sys_ftruncate+0x93/0xf0 fs/open.c:210 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd301b8e169 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:00007fd30294d038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007fd301db6080 RCX: 00007fd301b8e169 RDX: 0000000000000000 RSI: 0000000002007ffc RDI: 0000000000000006 RBP: 00007fd301c10a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd301db6080 R15: 00007ffe2c1c0e98