program: syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000040)='./file1\x00', 0x0, &(0x7f0000000080)={[{@part={'part', 0x3d, 0x500f}}, {@nodecompose}, {}, {@part={'part', 0x3d, 0xc}}, {@uid}, {@barrier}, {@nls={'nls', 0x3d, 'cp949'}}, {@gid={'gid', 0x3d, 0xee00}}]}, 0x3, 0x5f4, &(0x7f0000000640)="$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") r0 = creat(&(0x7f0000000000)='./file1\x00', 0x4) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0x0, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x4000, 0xa00}]) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000500)=@newlink={0x44, 0x10, 0x439, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x24, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x14, 0x2, 0x0, 0x1, [@IFLA_BR_STP_STATE={0x8, 0x15}, @IFLA_BR_VLAN_DEFAULT_PVID={0x6}]}}}]}, 0x44}}, 0x0) [ 101.946787][ T5305] Bluetooth: hci0: command tx timeout [ 102.094165][ T5324] loop0: detected capacity change from 0 to 1024 [ 102.168868][ T5324] [ 102.170507][ T5324] ============================================ [ 102.173224][ T5324] WARNING: possible recursive locking detected [ 102.175993][ T5324] syzkaller #0 Not tainted [ 102.178098][ T5324] -------------------------------------------- [ 102.181245][ T5324] syz.0.0/5324 is trying to acquire lock: [ 102.184098][ T5324] ffff88803431f708 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_get_block+0x39e/0x1670 [ 102.189791][ T5324] [ 102.189791][ T5324] but task is already holding lock: [ 102.193082][ T5324] ffff88803431e2c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2b3/0xc30 [ 102.198225][ T5324] [ 102.198225][ T5324] other info that might help us debug this: [ 102.202270][ T5324] Possible unsafe locking scenario: [ 102.202270][ T5324] [ 102.205751][ T5324] CPU0 [ 102.207385][ T5324] ---- [ 102.209032][ T5324] lock(&HFSPLUS_I(inode)->extents_lock); [ 102.211771][ T5324] lock(&HFSPLUS_I(inode)->extents_lock); [ 102.214392][ T5324] [ 102.214392][ T5324] *** DEADLOCK *** [ 102.214392][ T5324] [ 102.217722][ T5324] May be due to missing lock nesting notation [ 102.217722][ T5324] [ 102.221151][ T5324] 4 locks held by syz.0.0/5324: [ 102.223545][ T5324] #0: ffff888032410420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 102.229294][ T5324] #1: ffff88803431e4b8 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: do_truncate+0x18f/0x250 [ 102.233758][ T5324] #2: ffff88803431e2c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2b3/0xc30 [ 102.238881][ T5324] #3: ffff8880338c18f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_free+0xc7/0x630 [ 102.244118][ T5324] [ 102.244118][ T5324] stack backtrace: [ 102.247298][ T5324] CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 102.247321][ T5324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 102.247330][ T5324] Call Trace: [ 102.247341][ T5324] [ 102.247348][ T5324] dump_stack_lvl+0xe8/0x150 [ 102.247407][ T5324] print_deadlock_bug+0x279/0x290 [ 102.247474][ T5324] __lock_acquire+0x253f/0x2cf0 [ 102.247492][ T5324] ? lock_release+0x4b/0x3d0 [ 102.247506][ T5324] ? lock_release+0x4b/0x3d0 [ 102.247522][ T5324] ? is_bpf_text_address+0x292/0x2b0 [ 102.247570][ T5324] ? is_bpf_text_address+0x26/0x2b0 [ 102.247588][ T5324] lock_acquire+0xf0/0x2e0 [ 102.247603][ T5324] ? hfsplus_get_block+0x39e/0x1670 [ 102.247627][ T5324] __mutex_lock+0x19f/0x1300 [ 102.247706][ T5324] ? hfsplus_get_block+0x39e/0x1670 [ 102.247727][ T5324] ? stack_trace_save+0xa9/0x100 [ 102.247761][ T5324] ? __pfx_stack_trace_save+0x10/0x10 [ 102.247774][ T5324] ? check_path+0x21/0x40 [ 102.247792][ T5324] ? check_noncircular+0xda/0x150 [ 102.247808][ T5324] ? hfsplus_get_block+0x39e/0x1670 [ 102.247824][ T5324] ? __pfx___mutex_lock+0x10/0x10 [ 102.247841][ T5324] ? __lock_acquire+0x146e/0x2cf0 [ 102.247856][ T5324] hfsplus_get_block+0x39e/0x1670 [ 102.247874][ T5324] ? __pfx_hfsplus_get_block+0x10/0x10 [ 102.247892][ T5324] ? block_read_full_folio+0x672/0x830 [ 102.247926][ T5324] block_read_full_folio+0x29f/0x830 [ 102.247942][ T5324] ? __pfx_hfsplus_get_block+0x10/0x10 [ 102.247972][ T5324] filemap_read_folio+0x137/0x3b0 [ 102.248011][ T5324] ? __pfx_hfsplus_read_folio+0x10/0x10 [ 102.248031][ T5324] ? __pfx_filemap_read_folio+0x10/0x10 [ 102.248043][ T5324] ? filemap_add_folio+0x356/0x530 [ 102.248063][ T5324] do_read_cache_folio+0x358/0x590 [ 102.248079][ T5324] ? __pfx_hfsplus_read_folio+0x10/0x10 [ 102.248093][ T5324] read_cache_page+0x5d/0x170 [ 102.248104][ T5324] hfsplus_block_free+0x134/0x630 [ 102.248119][ T5324] ? __kmalloc_noprof+0x37d/0x760 [ 102.248164][ T5324] hfsplus_free_extents+0x121/0xa50 [ 102.248187][ T5324] hfsplus_file_truncate+0x762/0xc30 [ 102.248209][ T5324] ? __pfx___up_read+0x10/0x10 [ 102.248219][ T5324] ? __pfx_hfsplus_file_truncate+0x10/0x10 [ 102.248237][ T5324] ? unmap_mapping_range+0xe6/0x180 [ 102.248252][ T5324] ? __pfx_unmap_mapping_range+0x10/0x10 [ 102.248264][ T5324] ? setattr_prepare+0x232/0xb30 [ 102.248276][ T5324] ? truncate_setsize+0xcf/0xf0 [ 102.248315][ T5324] hfsplus_setattr+0x1c4/0x270 [ 102.248335][ T5324] ? __pfx_hfsplus_setattr+0x10/0x10 [ 102.248355][ T5324] notify_change+0xc1a/0xf40 [ 102.248370][ T5324] do_truncate+0x1c2/0x250 [ 102.248381][ T5324] ? __pfx_do_truncate+0x10/0x10 [ 102.248390][ T5324] ? apparmor_file_truncate+0x39f/0x470 [ 102.248478][ T5324] path_openat+0x2f89/0x3860 [ 102.248510][ T5324] ? __pfx_path_openat+0x10/0x10 [ 102.248526][ T5324] ? __x64_sys_creat+0x8f/0xc0 [ 102.248541][ T5324] ? __lock_acquire+0x6b5/0x2cf0 [ 102.248556][ T5324] do_file_open+0x23e/0x4a0 [ 102.248572][ T5324] ? __pfx_do_file_open+0x10/0x10 [ 102.248592][ T5324] ? _raw_spin_unlock+0x28/0x50 [ 102.248606][ T5324] ? alloc_fd+0x64b/0x6c0 [ 102.248620][ T5324] do_sys_openat2+0x113/0x200 [ 102.248632][ T5324] ? __se_sys_futex+0x3a8/0x450 [ 102.248672][ T5324] ? __pfx_do_sys_openat2+0x10/0x10 [ 102.248691][ T5324] ? rcu_is_watching+0x15/0xb0 [ 102.248712][ T5324] __x64_sys_creat+0x8f/0xc0 [ 102.248729][ T5324] do_syscall_64+0x14d/0xf80 [ 102.248747][ T5324] ? trace_irq_disable+0x3b/0x150 [ 102.248790][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.248802][ T5324] ? clear_bhb_loop+0x40/0x90 [ 102.248813][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.248824][ T5324] RIP: 0033:0x7f6f8759c799 [ 102.248838][ T5324] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 102.248848][ T5324] RSP: 002b:00007f6f883bbfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 102.248864][ T5324] RAX: ffffffffffffffda RBX: 00007f6f87815fa0 RCX: 00007f6f8759c799 [ 102.248873][ T5324] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000200000000000 [ 102.248880][ T5324] RBP: 00007f6f87632c99 R08: 0000000000000000 R09: 0000000000000000 [ 102.248888][ T5324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 102.248896][ T5324] R13: 00007f6f87816038 R14: 00007f6f87815fa0 R15: 00007ffca6c40b38 [ 102.248910][ T5324] [ 102.494632][ T5324] hfsplus: unable to mark blocks free: error -5 [ 102.499589][ T5324] hfsplus: can't free extent: start 134, count 1