Warning: Permanently added '10.128.0.167' (ED25519) to the list of known hosts.
executing program
[   44.465936][ T4020] loop0: detected capacity change from 0 to 1024
[   44.553748][ T4020] 
[   44.554281][ T4020] ============================================
[   44.555796][ T4020] WARNING: possible recursive locking detected
[   44.557284][ T4020] 5.15.178-syzkaller #0 Not tainted
[   44.558586][ T4020] --------------------------------------------
[   44.560115][ T4020] syz-executor304/4020 is trying to acquire lock:
[   44.561805][ T4020] ffff0000cb979548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x2c4/0x1194
[   44.564550][ T4020] 
[   44.564550][ T4020] but task is already holding lock:
[   44.566457][ T4020] ffff0000cb97a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x250/0xa2c
[   44.569302][ T4020] 
[   44.569302][ T4020] other info that might help us debug this:
[   44.571384][ T4020]  Possible unsafe locking scenario:
[   44.571384][ T4020] 
[   44.573262][ T4020]        CPU0
[   44.574083][ T4020]        ----
[   44.574865][ T4020]   lock(&HFSPLUS_I(inode)->extents_lock);
[   44.576284][ T4020]   lock(&HFSPLUS_I(inode)->extents_lock);
[   44.577731][ T4020] 
[   44.577731][ T4020]  *** DEADLOCK ***
[   44.577731][ T4020] 
[   44.579829][ T4020]  May be due to missing lock nesting notation
[   44.579829][ T4020] 
[   44.581983][ T4020] 6 locks held by syz-executor304/4020:
[   44.583309][ T4020]  #0: ffff0000da6c2460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c
[   44.585727][ T4020]  #1: ffff0000cb979e00 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: do_unlinkat+0x2d0/0x830
[   44.588309][ T4020]  #2: ffff0000cb97ab80 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: vfs_unlink+0xd8/0x508
[   44.590879][ T4020]  #3: ffff0000da6a2998 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_unlink+0x144/0x6a0
[   44.593238][ T4020]  #4: ffff0000cb97a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x250/0xa2c
[   44.596130][ T4020]  #5: ffff0000da6a28f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_free+0xcc/0x514
[   44.598716][ T4020] 
[   44.598716][ T4020] stack backtrace:
[   44.600151][ T4020] CPU: 0 PID: 4020 Comm: syz-executor304 Not tainted 5.15.178-syzkaller #0
[   44.602279][ T4020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   44.604806][ T4020] Call trace:
[   44.605610][ T4020]  dump_backtrace+0x0/0x530
[   44.606727][ T4020]  show_stack+0x2c/0x3c
[   44.607801][ T4020]  dump_stack_lvl+0x108/0x170
[   44.609002][ T4020]  dump_stack+0x1c/0x58
[   44.609993][ T4020]  __lock_acquire+0x62bc/0x7638
[   44.611209][ T4020]  lock_acquire+0x240/0x77c
[   44.612337][ T4020]  __mutex_lock_common+0x194/0x2154
[   44.613627][ T4020]  mutex_lock_nested+0xa4/0xf8
[   44.614763][ T4020]  hfsplus_get_block+0x2c4/0x1194
[   44.616006][ T4020]  block_read_full_page+0x2a0/0xc4c
[   44.617317][ T4020]  hfsplus_readpage+0x28/0x38
[   44.618429][ T4020]  do_read_cache_page+0x60c/0x950
[   44.619769][ T4020]  read_cache_page+0x68/0x84
[   44.620914][ T4020]  hfsplus_block_free+0x120/0x514
[   44.622279][ T4020]  hfsplus_free_extents+0x148/0x8d4
[   44.623548][ T4020]  hfsplus_file_truncate+0x678/0xa2c
[   44.624890][ T4020]  hfsplus_delete_inode+0x154/0x200
[   44.626258][ T4020]  hfsplus_unlink+0x414/0x6a0
[   44.627439][ T4020]  vfs_unlink+0x2f0/0x508
[   44.628566][ T4020]  do_unlinkat+0x4cc/0x830
[   44.629687][ T4020]  __arm64_sys_unlinkat+0xcc/0xfc
[   44.630938][ T4020]  invoke_syscall+0x98/0x2b8
[   44.632075][ T4020]  el0_svc_common+0x138/0x258
[   44.633294][ T4020]  do_el0_svc+0x58/0x14c
[   44.634388][ T4020]  el0_svc+0x7c/0x1f0
[   44.635421][ T4020]  el0t_64_sync_handler+0x84/0xe4
[   44.636672][ T4020]  el0t_64_sync+0x1a0/0x1a4
[   44.639618][ T4020] hfsplus: unable to mark blocks free: error -5
[   44.641196][ T4020] hfsplus: can't free extent