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$dir(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0x2000, 0x12) getdents64(r0, &(0x7f0000000100)=""/154, 0x9a) r1 = open$dir(&(0x7f0000000000)='./file1\x00', 0x4a300, 0x8) unlinkat(r1, &(0x7f00000003c0)='./file1\x00', 0x0) [ 101.781231][ T5324] Bluetooth: hci0: command tx timeout [ 101.877804][ T5344] loop0: detected capacity change from 0 to 1024 [ 101.965627][ T5344] [ 101.966952][ T5344] ============================================ [ 101.969660][ T5344] WARNING: possible recursive locking detected [ 101.972226][ T5344] 6.16.0-rc1-syzkaller-00182-g18531f4d1c8c #0 Not tainted [ 101.975213][ T5344] -------------------------------------------- [ 101.978284][ T5344] syz.0.0/5344 is trying to acquire lock: [ 101.981254][ T5344] ffff888052cf9548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_get_block+0x39e/0x1530 [ 101.985934][ T5344] [ 101.985934][ T5344] but task is already holding lock: [ 101.989101][ T5344] ffff888052cfa988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x294/0xb40 [ 101.994210][ T5344] [ 101.994210][ T5344] other info that might help us debug this: [ 101.998158][ T5344] Possible unsafe locking scenario: [ 101.998158][ T5344] [ 102.001332][ T5344] CPU0 [ 102.003108][ T5344] ---- [ 102.005325][ T5344] lock(&HFSPLUS_I(inode)->extents_lock); [ 102.008808][ T5344] lock(&HFSPLUS_I(inode)->extents_lock); [ 102.011818][ T5344] [ 102.011818][ T5344] *** DEADLOCK *** [ 102.011818][ T5344] [ 102.015381][ T5344] May be due to missing lock nesting notation [ 102.015381][ T5344] [ 102.020695][ T5344] 4 locks held by syz.0.0/5344: [ 102.023336][ T5344] #0: ffff88801c7f6428 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 102.027548][ T5344] #1: ffff888052cfab78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: do_truncate+0x171/0x220 [ 102.032094][ T5344] #2: ffff888052cfa988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x294/0xb40 [ 102.038336][ T5344] #3: ffff888052cde0f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_free+0xbe/0x550 [ 102.043101][ T5344] [ 102.043101][ T5344] stack backtrace: [ 102.045808][ T5344] CPU: 0 UID: 0 PID: 5344 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller-00182-g18531f4d1c8c #0 PREEMPT(full) [ 102.045826][ T5344] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 102.045836][ T5344] Call Trace: [ 102.045843][ T5344] [ 102.045850][ T5344] dump_stack_lvl+0x189/0x250 [ 102.045918][ T5344] ? __pfx_dump_stack_lvl+0x10/0x10 [ 102.045936][ T5344] ? __pfx__printk+0x10/0x10 [ 102.045949][ T5344] ? __kasan_check_byte+0x12/0x40 [ 102.045961][ T5344] ? print_lock_name+0xde/0x100 [ 102.045974][ T5344] print_deadlock_bug+0x28b/0x2a0 [ 102.046003][ T5344] validate_chain+0x1a3f/0x2140 [ 102.046017][ T5344] ? is_bpf_text_address+0x292/0x2b0 [ 102.046037][ T5344] ? is_bpf_text_address+0x26/0x2b0 [ 102.046054][ T5344] ? look_up_lock_class+0x74/0x170 [ 102.046116][ T5344] ? register_lock_class+0x51/0x320 [ 102.046131][ T5344] __lock_acquire+0xab9/0xd20 [ 102.046147][ T5344] ? hfsplus_get_block+0x39e/0x1530 [ 102.046161][ T5344] lock_acquire+0x120/0x360 [ 102.046176][ T5344] ? hfsplus_get_block+0x39e/0x1530 [ 102.046189][ T5344] ? __pfx_hlock_conflict+0x10/0x10 [ 102.046200][ T5344] __mutex_lock+0x182/0xe80 [ 102.046211][ T5344] ? hfsplus_get_block+0x39e/0x1530 [ 102.046225][ T5344] ? lockdep_unlock+0x89/0x120 [ 102.046239][ T5344] ? validate_chain+0x897/0x2140 [ 102.046251][ T5344] ? hfsplus_get_block+0x39e/0x1530 [ 102.046265][ T5344] ? __pfx___mutex_lock+0x10/0x10 [ 102.046280][ T5344] hfsplus_get_block+0x39e/0x1530 [ 102.046296][ T5344] ? __pfx_hfsplus_get_block+0x10/0x10 [ 102.046308][ T5344] ? do_raw_spin_unlock+0x4d/0x240 [ 102.046321][ T5344] ? _raw_spin_unlock+0x28/0x50 [ 102.046337][ T5344] block_read_full_folio+0x29f/0x830 [ 102.046354][ T5344] ? __pfx_hfsplus_get_block+0x10/0x10 [ 102.046367][ T5344] filemap_read_folio+0x114/0x380 [ 102.046389][ T5344] ? __pfx_hfsplus_read_folio+0x10/0x10 [ 102.046402][ T5344] ? __pfx_filemap_read_folio+0x10/0x10 [ 102.046418][ T5344] ? filemap_add_folio+0x1af/0x270 [ 102.046433][ T5344] do_read_cache_folio+0x350/0x590 [ 102.046449][ T5344] ? __pfx_hfsplus_read_folio+0x10/0x10 [ 102.046464][ T5344] read_cache_page+0x5d/0x170 [ 102.046481][ T5344] hfsplus_block_free+0x121/0x550 [ 102.046495][ T5344] hfsplus_free_extents+0x176/0xae0 [ 102.046515][ T5344] hfsplus_file_truncate+0x736/0xb40 [ 102.046534][ T5344] ? __pfx_hfsplus_file_truncate+0x10/0x10 [ 102.046556][ T5344] ? unmap_mapping_range+0xde/0x170 [ 102.046578][ T5344] ? __pfx_unmap_mapping_range+0x10/0x10 [ 102.046593][ T5344] ? truncate_setsize+0xcf/0xf0 [ 102.046609][ T5344] hfsplus_setattr+0x1c4/0x270 [ 102.046621][ T5344] ? __pfx_hfsplus_setattr+0x10/0x10 [ 102.046634][ T5344] notify_change+0xb33/0xe40 [ 102.046657][ T5344] do_truncate+0x1a4/0x220 [ 102.046669][ T5344] ? __pfx_do_truncate+0x10/0x10 [ 102.046678][ T5344] ? apparmor_file_truncate+0x23e/0x2d0 [ 102.046695][ T5344] path_openat+0x306c/0x3830 [ 102.046719][ T5344] ? __pfx_path_openat+0x10/0x10 [ 102.046733][ T5344] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.046748][ T5344] do_filp_open+0x1fa/0x410 [ 102.046763][ T5344] ? __lock_acquire+0xab9/0xd20 [ 102.046778][ T5344] ? __pfx_do_filp_open+0x10/0x10 [ 102.046798][ T5344] ? _raw_spin_unlock+0x28/0x50 [ 102.046812][ T5344] ? alloc_fd+0x64c/0x6c0 [ 102.046825][ T5344] do_sys_openat2+0x121/0x1c0 [ 102.046840][ T5344] ? __pfx_do_sys_openat2+0x10/0x10 [ 102.046854][ T5344] ? rcu_is_watching+0x15/0xb0 [ 102.046896][ T5344] __x64_sys_open+0x11e/0x150 [ 102.046912][ T5344] do_syscall_64+0xfa/0x3b0 [ 102.046924][ T5344] ? lockdep_hardirqs_on+0x9c/0x150 [ 102.046942][ T5344] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.046952][ T5344] ? clear_bhb_loop+0x60/0xb0 [ 102.046965][ T5344] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.046976][ T5344] RIP: 0033:0x7fb5aad8e929 [ 102.046989][ T5344] 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 [ 102.046998][ T5344] RSP: 002b:00007fb5abbeb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 102.047012][ T5344] RAX: ffffffffffffffda RBX: 00007fb5aafb5fa0 RCX: 00007fb5aad8e929 [ 102.047021][ T5344] RDX: 0000000000000008 RSI: 000000000004a300 RDI: 0000200000000000 [ 102.047030][ T5344] RBP: 00007fb5aae10b39 R08: 0000000000000000 R09: 0000000000000000 [ 102.047038][ T5344] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 102.047045][ T5344] R13: 0000000000000000 R14: 00007fb5aafb5fa0 R15: 00007ffec8992368 [ 102.047056][ T5344] [ 102.274745][ T5344] hfsplus: unable to mark blocks free: error -5 [ 102.278532][ T5344] hfsplus: can't free extent