program: r0 = syz_open_dev$vbi(&(0x7f0000000000), 0x0, 0x2) r1 = socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000540)=@newqdisc={0x48, 0x24, 0xf0b, 0x0, 0x3, {0x60, 0x0, 0x0, r3, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x6d, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x40000}}]}}]}, 0x48}}, 0x0) ioctl$VIDIOC_REQBUFS(r0, 0xc0145608, &(0x7f0000000400)={0x0, 0x6, 0x1}) syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r4 = creat(&(0x7f0000000100)='./file1\x00', 0x5d) io_setup(0x202, &(0x7f0000000200)=0x0) ioctl$TIOCL_GETKMSGREDIRECT(r4, 0x541c, &(0x7f0000000140)) syz_mount_image$ext4(&(0x7f0000000780)='ext4\x00', &(0x7f0000000300)='./file0\x00', 0xa00008, &(0x7f0000000100), 0x1, 0x7d3, &(0x7f00000007c0)="$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") r6 = openat(0xffffffffffffff9c, &(0x7f0000000240)='.\x00', 0x0, 0x0) ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r6, 0x8004587d, &(0x7f0000000080)={@desc={0x1, 0x0, @desc1}}) r7 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='.\x00', 0x0, 0x0) ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r7, 0xc0185879, &(0x7f0000000000)={@desc={0x1, 0x0, @auto='\x00\x00&\x00'}}) io_submit(r5, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r4, &(0x7f0000000000), 0x70000}]) [ 76.115227][ T5318] Bluetooth: hci0: command tx timeout [ 76.163775][ T5340] netlink: 28 bytes leftover after parsing attributes in process `syz.0.0'. [ 76.210328][ T5340] loop0: detected capacity change from 0 to 1024 [ 76.304601][ T1314] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.307575][ T1314] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.354815][ T5340] [ 76.355958][ T5340] ============================================ [ 76.358659][ T5340] WARNING: possible recursive locking detected [ 76.361254][ T5340] syzkaller #0 Not tainted [ 76.363163][ T5340] -------------------------------------------- [ 76.365510][ T5340] syz.0.0/5340 is trying to acquire lock: [ 76.367777][ T5340] ffff8880387c0108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1c30 [ 76.372241][ T5340] [ 76.372241][ T5340] but task is already holding lock: [ 76.375043][ T5340] ffff8880387c2988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1c30 [ 76.379539][ T5340] [ 76.379539][ T5340] other info that might help us debug this: [ 76.383139][ T5340] Possible unsafe locking scenario: [ 76.383139][ T5340] [ 76.386167][ T5340] CPU0 [ 76.387646][ T5340] ---- [ 76.389069][ T5340] lock(&HFSPLUS_I(inode)->extents_lock); [ 76.391596][ T5340] lock(&HFSPLUS_I(inode)->extents_lock); [ 76.393967][ T5340] [ 76.393967][ T5340] *** DEADLOCK *** [ 76.393967][ T5340] [ 76.397606][ T5340] May be due to missing lock nesting notation [ 76.397606][ T5340] [ 76.401224][ T5340] 3 locks held by syz.0.0/5340: [ 76.403461][ T5340] #0: ffff8880387c2b78 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 76.408439][ T5340] #1: ffff8880387c2988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1c30 [ 76.413023][ T5340] #2: ffff88801eb6a0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x2d0 [ 76.417348][ T5340] [ 76.417348][ T5340] stack backtrace: [ 76.419670][ T5340] CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.419682][ T5340] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.419686][ T5340] Call Trace: [ 76.419691][ T5340] [ 76.419696][ T5340] dump_stack_lvl+0xe8/0x150 [ 76.419708][ T5340] print_deadlock_bug+0x279/0x290 [ 76.419718][ T5340] __lock_acquire+0x2540/0x2cf0 [ 76.419731][ T5340] ? unwind_next_frame+0xa5/0x23d0 [ 76.419742][ T5340] ? __bfs+0x154/0x290 [ 76.419751][ T5340] ? __pfx_hlock_conflict+0x10/0x10 [ 76.419761][ T5340] ? hfsplus_file_extend+0x1f8/0x1c30 [ 76.419773][ T5340] lock_acquire+0x107/0x340 [ 76.419782][ T5340] ? hfsplus_file_extend+0x1f8/0x1c30 [ 76.419796][ T5340] __mutex_lock+0x187/0x1350 [ 76.419850][ T5340] ? hfsplus_file_extend+0x1f8/0x1c30 [ 76.419863][ T5340] ? __bfs+0x154/0x290 [ 76.419873][ T5340] ? __pfx_hlock_conflict+0x10/0x10 [ 76.419887][ T5340] ? hfsplus_file_extend+0x1f8/0x1c30 [ 76.419895][ T5340] ? check_noncircular+0xda/0x150 [ 76.419903][ T5340] ? __pfx___mutex_lock+0x10/0x10 [ 76.419911][ T5340] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 76.419922][ T5340] hfsplus_file_extend+0x1f8/0x1c30 [ 76.419933][ T5340] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 76.419940][ T5340] ? __pfx___mutex_trylock_common+0x10/0x10 [ 76.419949][ T5340] ? rcu_is_watching+0x15/0xb0 [ 76.419957][ T5340] ? trace_contention_end+0x39/0x100 [ 76.419965][ T5340] ? __asan_memset+0x22/0x50 [ 76.419973][ T5340] ? hfsplus_brec_find+0x1a9/0x510 [ 76.419986][ T5340] hfsplus_bmap_reserve+0x125/0x510 [ 76.420000][ T5340] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 76.420018][ T5340] __hfsplus_ext_cache_extent+0x89/0xe30 [ 76.420033][ T5340] hfsplus_file_extend+0x437/0x1c30 [ 76.420048][ T5340] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 76.420061][ T5340] ? clean_bdev_aliases+0x5c9/0x6b0 [ 76.420079][ T5340] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 76.420089][ T5340] hfsplus_get_block+0x40a/0x1600 [ 76.420098][ T5340] ? __pfx_hfsplus_get_block+0x10/0x10 [ 76.420105][ T5340] ? do_raw_spin_unlock+0x4d/0x240 [ 76.420115][ T5340] ? _raw_spin_unlock+0x28/0x50 [ 76.420125][ T5340] __block_write_begin_int+0x6b5/0x1900 [ 76.420137][ T5340] ? __pfx_hfsplus_get_block+0x10/0x10 [ 76.420146][ T5340] ? __pfx___block_write_begin_int+0x10/0x10 [ 76.420158][ T5340] cont_write_begin+0x78c/0xb50 [ 76.420170][ T5340] ? __pfx_cont_write_begin+0x10/0x10 [ 76.420184][ T5340] hfsplus_write_begin+0x66/0xb0 [ 76.420194][ T5340] ? __pfx_hfsplus_get_block+0x10/0x10 [ 76.420204][ T5340] generic_perform_write+0x2c5/0x900 [ 76.420217][ T5340] ? __pfx_generic_perform_write+0x10/0x10 [ 76.420226][ T5340] ? file_update_time_flags+0x2cb/0x4e0 [ 76.420239][ T5340] ? __generic_file_write_iter+0xf9/0x230 [ 76.420248][ T5340] ? generic_file_write_iter+0x103/0x550 [ 76.420257][ T5340] generic_file_write_iter+0x117/0x550 [ 76.420266][ T5340] ? __pfx_generic_file_write_iter+0x10/0x10 [ 76.420275][ T5340] ? __lock_acquire+0x6b6/0x2cf0 [ 76.420285][ T5340] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 76.420298][ T5340] ? lockdep_hardirqs_on+0x7b/0x110 [ 76.420307][ T5340] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 76.420321][ T5340] ? stack_depot_save_flags+0x3f3/0x810 [ 76.420337][ T5340] ? io_submit_one+0x775/0x1430 [ 76.420349][ T5340] ? aio_write+0x4c4/0x7a0 [ 76.420357][ T5340] aio_write+0x535/0x7a0 [ 76.420365][ T5340] ? __pfx_aio_write+0x10/0x10 [ 76.420375][ T5340] ? __might_fault+0xb0/0x130 [ 76.420385][ T5340] io_submit_one+0x775/0x1430 [ 76.420395][ T5340] ? irqentry_exit+0x5e8/0x670 [ 76.420401][ T5340] ? __pfx_io_submit_one+0x10/0x10 [ 76.420410][ T5340] ? __might_fault+0xb0/0x130 [ 76.420419][ T5340] ? __might_fault+0xb0/0x130 [ 76.420428][ T5340] __se_sys_io_submit+0x185/0x320 [ 76.420435][ T5340] ? __pfx___se_sys_io_submit+0x10/0x10 [ 76.420447][ T5340] do_syscall_64+0xec/0xf80 [ 76.420456][ T5340] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.420466][ T5340] ? trace_irq_disable+0x37/0x100 [ 76.420479][ T5340] ? clear_bhb_loop+0x60/0xb0 [ 76.420490][ T5340] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.420500][ T5340] RIP: 0033:0x7f162698f7c9 [ 76.420511][ T5340] 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 [ 76.420520][ T5340] RSP: 002b:00007f162785e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 76.420532][ T5340] RAX: ffffffffffffffda RBX: 00007f1626be5fa0 RCX: 00007f162698f7c9 [ 76.420539][ T5340] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f1627814000 [ 76.420544][ T5340] RBP: 00007f1626a13f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.420548][ T5340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.420552][ T5340] R13: 00007f1626be6038 R14: 00007f1626be5fa0 R15: 00007ffc6f812028 [ 76.420558][ T5340]