------------[ cut here ]------------ WARNING: CPU: 1 PID: 5006 at fs/hfsplus/extents.c:346 hfsplus_free_extents+0x703/0xae0 Modules linked in: CPU: 1 PID: 5006 Comm: syz.0.17 Not tainted 5.15.176-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:hfsplus_free_extents+0x703/0xae0 fs/hfsplus/extents.c:346 Code: 0f cb 44 89 ef 89 de e8 8b bc 3f ff 41 39 dd 75 20 49 83 c7 28 e8 1d bb 3f ff 41 bc 05 00 00 00 e9 e2 f9 ff ff e8 0d bb 3f ff <0f> 0b e9 83 f9 ff ff 44 89 ef 89 de e8 5c bc 3f ff 41 29 dd 73 0a RSP: 0018:ffffc9000312f750 EFLAGS: 00010293 RAX: ffffffff8240c9d3 RBX: ffff8880204e6020 RCX: ffff88806f4ad940 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807ec04048 RBP: ffff88807ec06000 R08: dffffc0000000000 R09: ffffed100fd8080a R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 000000000000014e R14: 000000000000014e R15: ffff8880760306d8 FS: 00007f2094e466c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2094e45f98 CR3: 000000007d1c3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_file_truncate+0x871/0xc70 fs/hfsplus/extents.c:592 hfsplus_write_begin+0xce/0xd0 fs/hfsplus/inode.c:57 cont_expand_zero fs/buffer.c:2398 [inline] cont_write_begin+0x2ad/0x840 fs/buffer.c:2461 hfsplus_write_begin+0x92/0xd0 fs/hfsplus/inode.c:53 generic_cont_expand_simple+0x144/0x230 fs/buffer.c:2362 hfsplus_setattr+0x169/0x280 fs/hfsplus/inode.c:261 notify_change+0xc6d/0xf50 fs/attr.c:505 do_truncate+0x21c/0x300 fs/open.c:65 vfs_truncate+0x2dd/0x3a0 fs/open.c:111 do_sys_truncate+0xda/0x190 fs/open.c:134 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f2095c0fd29 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:00007f2094e46038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f2095e00160 RCX: 00007f2095c0fd29 RDX: 0000000000000000 RSI: 0000000000100004 RDI: 0000000020000000 RBP: 00007f2095c8bb08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f2095e00160 R15: 00007fff7a029668