Warning: Permanently added '10.128.1.173' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.667563] hfsplus: xattr searching failed
[   34.672380] 
[   34.674108] ============================================
[   34.679625] WARNING: possible recursive locking detected
[   34.685049] 4.19.211-syzkaller #0 Not tainted
[   34.689521] --------------------------------------------
[   34.694961] syz-executor230/8085 is trying to acquire lock:
[   34.700653] 0000000014ad2508 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_get_block+0x292/0x960
[   34.710181] 
[   34.710181] but task is already holding lock:
[   34.716137] 000000004c8e57b8 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_truncate+0x1e2/0x1040
[   34.726090] 
[   34.726090] other info that might help us debug this:
[   34.732730]  Possible unsafe locking scenario:
[   34.732730] 
[   34.738763]        CPU0
[   34.741320]        ----
[   34.743872]   lock(&HFSPLUS_I(inode)->extents_lock);
[   34.748946]   lock(&HFSPLUS_I(inode)->extents_lock);
[   34.754022] 
[   34.754022]  *** DEADLOCK ***
[   34.754022] 
[   34.760056]  May be due to missing lock nesting notation
[   34.760056] 
[   34.766957] 4 locks held by syz-executor230/8085:
[   34.771770]  #0: 00000000715df61d (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0
[   34.779724]  #1: 000000005a738c52 (&sb->s_type->i_mutex_key#17){+.+.}, at: do_truncate+0x125/0x1f0
[   34.788801]  #2: 000000004c8e57b8 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_truncate+0x1e2/0x1040
[   34.799183]  #3: 00000000fe152d3a (&sbi->alloc_mutex){+.+.}, at: hfsplus_block_free+0xdb/0x5d0
[   34.807911] 
[   34.807911] stack backtrace:
[   34.812385] CPU: 1 PID: 8085 Comm: syz-executor230 Not tainted 4.19.211-syzkaller #0
[   34.820236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   34.829563] Call Trace:
[   34.832164]  dump_stack+0x1fc/0x2ef
[   34.835770]  __lock_acquire.cold+0x121/0x57e
[   34.840157]  ? mark_held_locks+0xf0/0xf0
[   34.844193]  ? add_lock_to_list.constprop.0+0x17d/0x330
[   34.849532]  ? save_trace+0xd6/0x290
[   34.853221]  ? __lock_acquire+0x22f9/0x3ff0
[   34.857519]  lock_acquire+0x170/0x3c0
[   34.861295]  ? hfsplus_get_block+0x292/0x960
[   34.865681]  ? hfsplus_get_block+0x292/0x960
[   34.870063]  __mutex_lock+0xd7/0x1190
[   34.873842]  ? hfsplus_get_block+0x292/0x960
[   34.878229]  ? check_preemption_disabled+0x41/0x280
[   34.883220]  ? hfsplus_get_block+0x292/0x960
[   34.888043]  ? mutex_trylock+0x1a0/0x1a0
[   34.892083]  ? create_page_buffers+0x212/0x350
[   34.896641]  ? alloc_page_buffers+0x2da/0x5c0
[   34.901119]  ? lock_downgrade+0x720/0x720
[   34.905240]  ? do_raw_spin_lock+0xcb/0x220
[   34.909451]  hfsplus_get_block+0x292/0x960
[   34.913664]  block_read_full_page+0x288/0xd10
[   34.918134]  ? hfsplus_file_extend+0xf40/0xf40
[   34.922708]  ? __bread_gfp+0x300/0x300
[   34.926574]  ? add_to_page_cache_locked+0x40/0x40
[   34.931394]  do_read_cache_page+0x533/0x1170
[   34.935786]  ? hfsplus_bmap+0x30/0x30
[   34.939560]  hfsplus_block_free+0x18b/0x5d0
[   34.943856]  ? __mutex_unlock_slowpath+0xea/0x610
[   34.948674]  hfsplus_free_extents+0x228/0x520
[   34.953182]  hfsplus_file_truncate+0xd96/0x1040
[   34.957834]  ? hfsplus_get_block+0x960/0x960
[   34.962226]  ? up_write+0x18/0x150
[   34.965744]  ? unmap_mapping_pages+0x121/0x2b0
[   34.970302]  ? inode_newsize_ok+0x121/0x1e0
[   34.974601]  hfsplus_setattr+0x1e7/0x310
[   34.978641]  ? hfsplus_file_open+0x140/0x140
[   34.983121]  notify_change+0x70b/0xfc0
[   34.986988]  do_truncate+0x134/0x1f0
[   34.990675]  ? dentry_open+0x1d0/0x1d0
[   34.994540]  ? apparmor_path_truncate+0x183/0x200
[   34.999357]  ? inode_permission+0x3d/0x140
[   35.003570]  path_openat+0x2308/0x2df0
[   35.007437]  ? path_lookupat+0x8d0/0x8d0
[   35.011475]  ? mark_held_locks+0xf0/0xf0
[   35.015512]  ? __lock_acquire+0x6de/0x3ff0
[   35.019722]  do_filp_open+0x18c/0x3f0
[   35.023497]  ? may_open_dev+0xf0/0xf0
[   35.027275]  ? lock_downgrade+0x720/0x720
[   35.031396]  ? lock_acquire+0x170/0x3c0
[   35.035351]  ? __alloc_fd+0x34/0x570
[   35.039039]  ? do_raw_spin_unlock+0x171/0x230
[   35.043509]  ? _raw_spin_unlock+0x29/0x40
[   35.047630]  ? __alloc_fd+0x28d/0x570
[   35.051416]  do_sys_open+0x3b3/0x520
[   35.055155]  ? filp_open+0x70/0x70
[   35.058672]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[   35.064015]  ? trace_hardirqs_off_caller+0x6e/0x210
[   35.069007]  ? do_syscall_64+0x21/0x620
[   35.073044]  do_syscall_64+0xf9/0x620
[   35.076825]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   35.081992] RIP: 0033:0x7f5c14a13779
[   35.085681] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
[   35.104556] RSP: 002b:00007ffdc7235d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[   35.112237] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f5c14a13779
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