program: syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000040)='./file1\x00', 0x0, &(0x7f0000000080)={[{@part={'part', 0x3d, 0x40}}, {@nodecompose}, {@part={'part', 0x3d, 0x7}}, {@part={'part', 0x3d, 0xc}}, {@uid}, {@barrier}, {@nls={'nls', 0x3d, 'macinuit'}}, {@gid={'gid', 0x3d, 0xee00}}]}, 0x3, 0x5f4, &(0x7f0000000640)="$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") r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x22600, 0x80) getdents64(r0, &(0x7f0000000100)=""/154, 0x9a) unlinkat(0xffffffffffffff9c, &(0x7f00000003c0)='./file2\x00', 0x0) [ 85.095109][ T5338] Bluetooth: hci0: command tx timeout [ 85.178646][ T5362] loop0: detected capacity change from 0 to 1024 [ 85.320702][ T5362] [ 85.321809][ T5362] ============================================ [ 85.324409][ T5362] WARNING: possible recursive locking detected [ 85.327203][ T5362] 6.16.0-syzkaller-12288-g2b38afce25c4 #0 Not tainted [ 85.329914][ T5362] -------------------------------------------- [ 85.332635][ T5362] syz.0.0/5362 is trying to acquire lock: [ 85.335254][ T5362] ffff8880532f1548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_get_block+0x39e/0x1530 [ 85.340227][ T5362] [ 85.340227][ T5362] but task is already holding lock: [ 85.343491][ T5362] ffff8880532f2988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x294/0xb40 [ 85.348614][ T5362] [ 85.348614][ T5362] other info that might help us debug this: [ 85.352686][ T5362] Possible unsafe locking scenario: [ 85.352686][ T5362] [ 85.356029][ T5362] CPU0 [ 85.357626][ T5362] ---- [ 85.359106][ T5362] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.361747][ T5362] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.364753][ T5362] [ 85.364753][ T5362] *** DEADLOCK *** [ 85.364753][ T5362] [ 85.369042][ T5362] May be due to missing lock nesting notation [ 85.369042][ T5362] [ 85.373139][ T5362] 4 locks held by syz.0.0/5362: [ 85.375551][ T5362] #0: ffff8880335e0428 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 85.379633][ T5362] #1: ffff8880532f2b78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: do_truncate+0x171/0x220 [ 85.384133][ T5362] #2: ffff8880532f2988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x294/0xb40 [ 85.390444][ T5362] #3: ffff8880115978f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_free+0xbe/0x550 [ 85.395413][ T5362] [ 85.395413][ T5362] stack backtrace: [ 85.397947][ T5362] CPU: 0 UID: 0 PID: 5362 Comm: syz.0.0 Not tainted 6.16.0-syzkaller-12288-g2b38afce25c4 #0 PREEMPT(full) [ 85.397969][ T5362] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.397976][ T5362] Call Trace: [ 85.397984][ T5362] [ 85.397990][ T5362] dump_stack_lvl+0x189/0x250 [ 85.398012][ T5362] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.398025][ T5362] ? __pfx__printk+0x10/0x10 [ 85.398042][ T5362] ? print_lock_name+0xde/0x100 [ 85.398056][ T5362] print_deadlock_bug+0x28b/0x2a0 [ 85.398069][ T5362] validate_chain+0x1a3f/0x2140 [ 85.398080][ T5362] ? lock_release+0x4b/0x3e0 [ 85.398096][ T5362] ? look_up_lock_class+0x74/0x170 [ 85.398160][ T5362] ? register_lock_class+0x51/0x320 [ 85.398177][ T5362] __lock_acquire+0xab9/0xd20 [ 85.398195][ T5362] ? hfsplus_get_block+0x39e/0x1530 [ 85.398207][ T5362] lock_acquire+0x120/0x360 [ 85.398220][ T5362] ? hfsplus_get_block+0x39e/0x1530 [ 85.398231][ T5362] ? stack_trace_save+0x9c/0xe0 [ 85.398244][ T5362] ? __pfx_hlock_conflict+0x10/0x10 [ 85.398256][ T5362] __mutex_lock+0x187/0x1360 [ 85.398269][ T5362] ? hfsplus_get_block+0x39e/0x1530 [ 85.398280][ T5362] ? lockdep_unlock+0x89/0x120 [ 85.398294][ T5362] ? hfsplus_get_block+0x39e/0x1530 [ 85.398306][ T5362] ? __pfx___mutex_lock+0x10/0x10 [ 85.398322][ T5362] hfsplus_get_block+0x39e/0x1530 [ 85.398335][ T5362] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.398344][ T5362] ? do_raw_spin_unlock+0x4d/0x240 [ 85.398357][ T5362] ? _raw_spin_unlock+0x28/0x50 [ 85.398369][ T5362] block_read_full_folio+0x29f/0x830 [ 85.398380][ T5362] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.398391][ T5362] filemap_read_folio+0x117/0x380 [ 85.398409][ T5362] ? __pfx_hfsplus_read_folio+0x10/0x10 [ 85.398419][ T5362] ? __pfx_filemap_read_folio+0x10/0x10 [ 85.398436][ T5362] ? filemap_add_folio+0x1af/0x270 [ 85.398451][ T5362] do_read_cache_folio+0x350/0x590 [ 85.398461][ T5362] ? __pfx_hfsplus_read_folio+0x10/0x10 [ 85.398471][ T5362] read_cache_page+0x5d/0x170 [ 85.398480][ T5362] hfsplus_block_free+0x121/0x550 [ 85.398495][ T5362] hfsplus_free_extents+0x10d/0xa60 [ 85.398506][ T5362] hfsplus_file_truncate+0x736/0xb40 [ 85.398520][ T5362] ? __pfx_hfsplus_file_truncate+0x10/0x10 [ 85.398531][ T5362] ? unmap_mapping_range+0xde/0x170 [ 85.398542][ T5362] ? __pfx_unmap_mapping_range+0x10/0x10 [ 85.398552][ T5362] ? truncate_setsize+0xcf/0xf0 [ 85.398563][ T5362] hfsplus_setattr+0x1c4/0x270 [ 85.398573][ T5362] ? __pfx_hfsplus_setattr+0x10/0x10 [ 85.398582][ T5362] notify_change+0xb33/0xe40 [ 85.398596][ T5362] do_truncate+0x1a4/0x220 [ 85.398637][ T5362] ? __pfx_do_truncate+0x10/0x10 [ 85.398650][ T5362] ? apparmor_file_truncate+0x23e/0x2d0 [ 85.398665][ T5362] path_openat+0x306c/0x3830 [ 85.398675][ T5362] ? arch_stack_walk+0xfc/0x150 [ 85.398696][ T5362] ? __pfx_path_openat+0x10/0x10 [ 85.398704][ T5362] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.398720][ T5362] do_filp_open+0x1fa/0x410 [ 85.398731][ T5362] ? __lock_acquire+0xab9/0xd20 [ 85.398747][ T5362] ? __pfx_do_filp_open+0x10/0x10 [ 85.398763][ T5362] ? _raw_spin_unlock+0x28/0x50 [ 85.398774][ T5362] ? alloc_fd+0x64c/0x6c0 [ 85.398789][ T5362] do_sys_openat2+0x121/0x1c0 [ 85.398805][ T5362] ? __pfx_do_sys_openat2+0x10/0x10 [ 85.398821][ T5362] ? rcu_is_watching+0x15/0xb0 [ 85.398832][ T5362] __x64_sys_openat+0x138/0x170 [ 85.398847][ T5362] do_syscall_64+0xfa/0x3b0 [ 85.398862][ T5362] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.398874][ T5362] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.398883][ T5362] ? clear_bhb_loop+0x60/0xb0 [ 85.398893][ T5362] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.398902][ T5362] RIP: 0033:0x7f55ccb8ebe9 [ 85.398915][ T5362] 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 [ 85.398924][ T5362] RSP: 002b:00007f55c8fed038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 85.398936][ T5362] RAX: ffffffffffffffda RBX: 00007f55ccdb5fa0 RCX: 00007f55ccb8ebe9 [ 85.398943][ T5362] RDX: 0000000000022600 RSI: 0000200000000000 RDI: ffffffffffffff9c [ 85.398950][ T5362] RBP: 00007f55ccc11e19 R08: 0000000000000000 R09: 0000000000000000 [ 85.398958][ T5362] R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000000 [ 85.398973][ T5362] R13: 00007f55ccdb6038 R14: 00007f55ccdb5fa0 R15: 00007ffcdeed79a8 [ 85.398986][ T5362] [ 85.617292][ T5362] hfsplus: unable to mark blocks free: error -5 [ 85.620543][ T5362] hfsplus: can't free extent [ 85.626699][ T5362] syz.0.0 (5362) used greatest stack depth: 19560 bytes left