program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000000)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000140)='./file1\x00', 0x162) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0x7, &(0x7f0000000000)={0x3ff, 0x8, 0xfffffff4, 0x4}, 0x10) io_setup(0x5, &(0x7f0000000100)) r2 = openat$ipvs(0xffffffffffffff9c, &(0x7f0000000180)='/proc/sys/net/ipv4/vs/sync_sock_size\x00', 0x2, 0x0) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDRS(0xffffffffffffffff, 0x84, 0x6c, &(0x7f00000003c0)={0x0, 0x7b, "9a11929437b53de5ebf84b76212b1bb642d158d7819ad53405b472da7dc4390ac4301863ed92083f5d5387f2fe1e22ce7b74c823348b3b2249609d50ad57ced1fa322d0c2b09cfd4e28f84edfc766df14f9108042e8f967f163e19c8e1835febdaac24b067b666aa5a50e840a96cd3a6584f012db55c2020dbd78c"}, &(0x7f0000000480)=0x83) setsockopt$inet_sctp6_SCTP_RTOINFO(r2, 0x84, 0x0, &(0x7f00000004c0)={r3, 0x7f, 0x3, 0x6}, 0x10) ioctl$sock_ipv4_tunnel_SIOCDELTUNNEL(r0, 0x89f2, &(0x7f00000002c0)={'tunl0\x00', &(0x7f0000000240)={'syztnl0\x00', 0x0, 0x40, 0x700, 0xd1e7, 0x1ff, {{0x11, 0x4, 0x2, 0x3, 0x44, 0x67, 0x0, 0x6, 0x2f, 0x0, @multicast1, @empty, {[@timestamp_addr={0x44, 0x1c, 0xf0, 0x1, 0x0, [{@multicast2, 0x25b5}, {@multicast1, 0x324}, {@remote, 0x40}]}, @timestamp_prespec={0x44, 0xc, 0xf9, 0x3, 0xe, [{@remote, 0x4}]}, @generic={0x18c, 0x8, "611d5ac26f48"}]}}}}}) sendmsg$nl_route_sched(r2, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)=@newqdisc={0x34, 0x24, 0x800, 0x70bd26, 0x25dfdbfc, {0x0, 0x0, 0x0, r4, {0xfff1, 0x9}, {0xffff, 0xf}, {0xfff1, 0x8}}, [@TCA_EGRESS_BLOCK={0x8}, @TCA_EGRESS_BLOCK={0x8, 0xe, 0x2}]}, 0x34}, 0x1, 0x0, 0x0, 0x4000}, 0x0) [ 84.853037][ T4683] Bluetooth: hci0: command tx timeout [ 85.017038][ T5339] loop0: detected capacity change from 0 to 1024 [ 85.100728][ T5339] [ 85.101914][ T5339] ============================================ [ 85.104868][ T5339] WARNING: possible recursive locking detected [ 85.107802][ T5339] 6.16.0-rc7-syzkaller-00120-g5f33ebd2018c #0 Not tainted [ 85.111125][ T5339] -------------------------------------------- [ 85.114159][ T5339] syz.0.0/5339 is trying to acquire lock: [ 85.117238][ T5339] ffff888052f7c108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 85.123291][ T5339] [ 85.123291][ T5339] but task is already holding lock: [ 85.126691][ T5339] ffff888052f7e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 85.131591][ T5339] [ 85.131591][ T5339] other info that might help us debug this: [ 85.136061][ T5339] Possible unsafe locking scenario: [ 85.136061][ T5339] [ 85.139687][ T5339] CPU0 [ 85.141236][ T5339] ---- [ 85.142718][ T5339] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.145194][ T5339] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.147778][ T5339] [ 85.147778][ T5339] *** DEADLOCK *** [ 85.147778][ T5339] [ 85.151671][ T5339] May be due to missing lock nesting notation [ 85.151671][ T5339] [ 85.156365][ T5339] 3 locks held by syz.0.0/5339: [ 85.158544][ T5339] #0: ffff888052f7eb78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xe3/0x540 [ 85.163710][ T5339] #1: ffff888052f7e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 85.169299][ T5339] #2: ffff888043de60b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 85.175082][ T5339] [ 85.175082][ T5339] stack backtrace: [ 85.177662][ T5339] CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00120-g5f33ebd2018c #0 PREEMPT(full) [ 85.177680][ T5339] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.177688][ T5339] Call Trace: [ 85.177696][ T5339] [ 85.177703][ T5339] dump_stack_lvl+0x189/0x250 [ 85.177758][ T5339] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.177769][ T5339] ? __pfx__printk+0x10/0x10 [ 85.177781][ T5339] ? print_lock_name+0xde/0x100 [ 85.177790][ T5339] print_deadlock_bug+0x28b/0x2a0 [ 85.177824][ T5339] validate_chain+0x1a3f/0x2140 [ 85.177837][ T5339] ? check_path+0x21/0x40 [ 85.177847][ T5339] ? check_noncircular+0xe0/0x160 [ 85.177858][ T5339] ? look_up_lock_class+0x74/0x170 [ 85.177962][ T5339] ? register_lock_class+0x51/0x320 [ 85.177974][ T5339] __lock_acquire+0xab9/0xd20 [ 85.177987][ T5339] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.178026][ T5339] lock_acquire+0x120/0x360 [ 85.178036][ T5339] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.178055][ T5339] __mutex_lock+0x182/0xe80 [ 85.178067][ T5339] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.178093][ T5339] ? check_path+0x21/0x40 [ 85.178106][ T5339] ? check_noncircular+0xe0/0x160 [ 85.178118][ T5339] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.178131][ T5339] ? __pfx___mutex_lock+0x10/0x10 [ 85.178145][ T5339] hfsplus_file_extend+0x1fc/0x1990 [ 85.178161][ T5339] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.178175][ T5339] ? __mutex_trylock_common+0x153/0x260 [ 85.178189][ T5339] ? __pfx___mutex_trylock_common+0x10/0x10 [ 85.178201][ T5339] ? rcu_is_watching+0x15/0xb0 [ 85.178214][ T5339] ? trace_contention_end+0x39/0x120 [ 85.178226][ T5339] ? __mutex_lock+0x330/0xe80 [ 85.178236][ T5339] ? hfsplus_brec_find+0x191/0x500 [ 85.178250][ T5339] hfsplus_bmap_reserve+0x122/0x500 [ 85.178263][ T5339] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 85.178279][ T5339] __hfsplus_ext_cache_extent+0x89/0xe30 [ 85.178296][ T5339] hfsplus_file_extend+0x444/0x1990 [ 85.178312][ T5339] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.178326][ T5339] ? clean_bdev_aliases+0x5c9/0x6b0 [ 85.178345][ T5339] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 85.178361][ T5339] hfsplus_get_block+0x411/0x1530 [ 85.178378][ T5339] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.178393][ T5339] ? do_raw_spin_unlock+0x4d/0x240 [ 85.178404][ T5339] ? _raw_spin_unlock+0x28/0x50 [ 85.178415][ T5339] __block_write_begin_int+0x6b5/0x1900 [ 85.178430][ T5339] ? folio_add_lru+0x1b2/0x3d0 [ 85.178445][ T5339] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.178460][ T5339] ? __pfx___block_write_begin_int+0x10/0x10 [ 85.178479][ T5339] cont_write_begin+0x789/0xb50 [ 85.178499][ T5339] ? __pfx_cont_write_begin+0x10/0x10 [ 85.178515][ T5339] ? __pfx___might_resched+0x10/0x10 [ 85.178529][ T5339] ? folio_unlock+0x101/0x160 [ 85.178544][ T5339] hfsplus_write_begin+0x66/0xb0 [ 85.178556][ T5339] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.178571][ T5339] generic_perform_write+0x2c7/0x910 [ 85.178583][ T5339] ? __pfx_generic_perform_write+0x10/0x10 [ 85.178591][ T5339] ? file_update_time+0x2da/0x490 [ 85.178602][ T5339] ? __generic_file_write_iter+0xf9/0x230 [ 85.178610][ T5339] ? generic_file_write_iter+0xfb/0x540 [ 85.178620][ T5339] generic_file_write_iter+0x10f/0x540 [ 85.178630][ T5339] ? aa_file_perm+0x11f/0xed0 [ 85.178692][ T5339] ? __pfx_generic_file_write_iter+0x10/0x10 [ 85.178706][ T5339] ? __lock_acquire+0xab9/0xd20 [ 85.178721][ T5339] ? aio_write+0x4c4/0x7a0 [ 85.178735][ T5339] aio_write+0x535/0x7a0 [ 85.178748][ T5339] ? __pfx_aio_write+0x10/0x10 [ 85.178763][ T5339] ? __might_fault+0xb0/0x130 [ 85.178779][ T5339] io_submit_one+0x78b/0x1310 [ 85.178794][ T5339] ? __pfx_io_submit_one+0x10/0x10 [ 85.178807][ T5339] ? __might_fault+0xb0/0x130 [ 85.178818][ T5339] ? __might_fault+0xb0/0x130 [ 85.178831][ T5339] __se_sys_io_submit+0x185/0x2f0 [ 85.178844][ T5339] ? __pfx___se_sys_io_submit+0x10/0x10 [ 85.178858][ T5339] ? do_syscall_64+0xbe/0x3b0 [ 85.178913][ T5339] do_syscall_64+0xfa/0x3b0 [ 85.178924][ T5339] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.178934][ T5339] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.178965][ T5339] ? clear_bhb_loop+0x60/0xb0 [ 85.178977][ T5339] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.178988][ T5339] RIP: 0033:0x7fb5f4d8e9a9 [ 85.178999][ T5339] 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 [ 85.179009][ T5339] RSP: 002b:00007fb5f5cc3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 85.179022][ T5339] RAX: ffffffffffffffda RBX: 00007fb5f4fb5fa0 RCX: 00007fb5f4d8e9a9 [ 85.179029][ T5339] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fb5f5c79000 [ 85.179036][ T5339] RBP: 00007fb5f4e10d69 R08: 0000000000000000 R09: 0000000000000000 [ 85.179041][ T5339] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.179047][ T5339] R13: 0000000000000000 R14: 00007fb5f4fb5fa0 R15: 00007ffc2680e9e8 [ 85.179059][ T5339]