DUID 00:04:14:ea:69:2d:fc:f3:63:7c:fd:90:a5:52:1b:d2:c9:24 forked to background, child pid 3916 [ 47.793418][ T3917] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.816507][ T3917] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.71' (ED25519) to the list of known hosts. executing program syzkaller login: [ 70.766896][ T4245] loop0: detected capacity change from 0 to 4096 [ 70.794887][ T4245] ntfs3: loop0: Mark volume as dirty due to NTFS errors [ 70.815523][ T4245] ntfs3: loop0: Failed to load $Extend. [ 70.832373][ T4245] [ 70.834755][ T4245] ============================================ [ 70.840915][ T4245] WARNING: possible recursive locking detected [ 70.847055][ T4245] 6.1.124-syzkaller #0 Not tainted [ 70.852175][ T4245] -------------------------------------------- [ 70.858310][ T4245] syz-executor500/4245 is trying to acquire lock: [ 70.864709][ T4245] ffff88806ec51e80 (&ni->ni_lock/5){+.+.}-{3:3}, at: mi_read+0x2dd/0x5a0 [ 70.873173][ T4245] [ 70.873173][ T4245] but task is already holding lock: [ 70.880524][ T4245] ffff88806ec54360 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_rename+0x710/0xd10 [ 70.889312][ T4245] [ 70.889312][ T4245] other info that might help us debug this: [ 70.897375][ T4245] Possible unsafe locking scenario: [ 70.897375][ T4245] [ 70.904811][ T4245] CPU0 [ 70.908078][ T4245] ---- [ 70.911344][ T4245] lock(&ni->ni_lock/5); [ 70.915673][ T4245] lock(&ni->ni_lock/5); [ 70.920026][ T4245] [ 70.920026][ T4245] *** DEADLOCK *** [ 70.920026][ T4245] [ 70.928171][ T4245] May be due to missing lock nesting notation [ 70.928171][ T4245] [ 70.936484][ T4245] 6 locks held by syz-executor500/4245: [ 70.942029][ T4245] #0: ffff888030c66460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 [ 70.951188][ T4245] #1: ffff88806ec53ea0 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: do_renameat2+0x65a/0x1440 [ 70.961648][ T4245] #2: ffff88806ec54600 (&sb->s_type->i_mutex_key#15/4){+.+.}-{3:3}, at: vfs_rename+0x7e4/0x10f0 [ 70.972199][ T4245] #3: ffff88806ec53c00 (&ni->ni_lock/6){+.+.}-{3:3}, at: ntfs_rename+0x6fa/0xd10 [ 70.981526][ T4245] #4: ffff88806ec54360 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_rename+0x710/0xd10 [ 70.990763][ T4245] #5: ffff888030c64120 (&wnd->rw_lock/1){+.+.}-{3:3}, at: ntfs_look_free_mft+0x1e1/0x10c0 [ 71.000783][ T4245] [ 71.000783][ T4245] stack backtrace: [ 71.006684][ T4245] CPU: 0 PID: 4245 Comm: syz-executor500 Not tainted 6.1.124-syzkaller #0 [ 71.015183][ T4245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 71.025243][ T4245] Call Trace: [ 71.028538][ T4245] [ 71.031472][ T4245] dump_stack_lvl+0x1e3/0x2cb [ 71.036173][ T4245] ? nf_tcp_handle_invalid+0x642/0x642 [ 71.041645][ T4245] ? panic+0x764/0x764 [ 71.045722][ T4245] validate_chain+0x4711/0x5950 [ 71.050591][ T4245] ? reacquire_held_locks+0x660/0x660 [ 71.055967][ T4245] ? look_up_lock_class+0x77/0x140 [ 71.061092][ T4245] ? register_lock_class+0x100/0x990 [ 71.066388][ T4245] ? is_dynamic_key+0x260/0x260 [ 71.071247][ T4245] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 71.077234][ T4245] ? mark_lock+0x9a/0x340 [ 71.081575][ T4245] __lock_acquire+0x125b/0x1f80 [ 71.086440][ T4245] lock_acquire+0x1f8/0x5a0 [ 71.090949][ T4245] ? mi_read+0x2dd/0x5a0 [ 71.095199][ T4245] ? read_lock_is_recursive+0x10/0x10 [ 71.100583][ T4245] ? __might_sleep+0xb0/0xb0 [ 71.105170][ T4245] ? ntfs_look_free_mft+0x874/0x10c0 [ 71.110454][ T4245] ? ni_create_attr_list+0x9b6/0x1470 [ 71.115828][ T4245] ? ntfs_rename+0x74a/0xd10 [ 71.120419][ T4245] ? do_renameat2+0xde0/0x1440 [ 71.125191][ T4245] __mutex_lock+0x132/0xd80 [ 71.129694][ T4245] ? mi_read+0x2dd/0x5a0 [ 71.133936][ T4245] ? mi_read+0x1ba/0x5a0 [ 71.138176][ T4245] ? mi_read+0x2dd/0x5a0 [ 71.142420][ T4245] ? __lock_acquire+0x1f80/0x1f80 [ 71.147471][ T4245] ? mutex_lock_nested+0x10/0x10 [ 71.152409][ T4245] ? __up_read+0x2b9/0x690 [ 71.156895][ T4245] ? up_read+0x20/0x20 [ 71.160997][ T4245] mi_read+0x2dd/0x5a0 [ 71.165068][ T4245] mi_format_new+0x1a7/0x5c0 [ 71.169663][ T4245] ni_add_subrecord+0xde/0x430 [ 71.174438][ T4245] ntfs_look_free_mft+0x874/0x10c0 [ 71.179560][ T4245] ? ntfs_refresh_zone+0x4a0/0x4a0 [ 71.184677][ T4245] ? rcu_is_watching+0x11/0xb0 [ 71.189442][ T4245] ? mi_enum_attr+0x1f2/0xa00 [ 71.194123][ T4245] ni_create_attr_list+0x9b6/0x1470 [ 71.199329][ T4245] ? ni_remove_attr+0x930/0x930 [ 71.204272][ T4245] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 71.210265][ T4245] ? register_lock_class+0x100/0x990 [ 71.215563][ T4245] ? is_dynamic_key+0x260/0x260 [ 71.220422][ T4245] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 71.226327][ T4245] ni_ins_attr_ext+0x330/0xbf0 [ 71.231102][ T4245] ? ni_find_attr+0x389/0x8b0 [ 71.235788][ T4245] ? ni_expand_list+0x1170/0x1170 [ 71.240818][ T4245] ? ni_load_mi+0x110/0x110 [ 71.245328][ T4245] ni_add_name+0x619/0xc30 [ 71.249755][ T4245] ? ni_remove_name_undo+0xf50/0xf50 [ 71.255045][ T4245] ? trace_contention_end+0x61/0x170 [ 71.260340][ T4245] ? __mutex_lock+0x2f7/0xd80 [ 71.265043][ T4245] ? ntfs_nls_to_utf16+0x875/0xc50 [ 71.270159][ T4245] ni_rename+0xbe/0x1e0 [ 71.274321][ T4245] ? ni_add_name+0xc30/0xc30 [ 71.278944][ T4245] ? ntfs_utf16_to_nls+0x730/0x730 [ 71.284067][ T4245] ? fill_name_de+0x131/0x340 [ 71.288752][ T4245] ntfs_rename+0x74a/0xd10 [ 71.293177][ T4245] ? vfs_rename+0x74d/0x10f0 [ 71.297790][ T4245] ? ntfs_mknod+0x60/0x60 [ 71.302125][ T4245] ? do_raw_spin_unlock+0x137/0x8a0 [ 71.307326][ T4245] ? memcpy+0x3c/0x60 [ 71.311317][ T4245] vfs_rename+0xd32/0x10f0 [ 71.315745][ T4245] ? __ia32_sys_link+0x90/0x90 [ 71.320519][ T4245] ? security_path_rename+0x17f/0x210 [ 71.325903][ T4245] do_renameat2+0xde0/0x1440 [ 71.330510][ T4245] ? fsnotify_move+0x4f0/0x4f0 [ 71.335285][ T4245] ? __virt_addr_valid+0x17f/0x530 [ 71.340402][ T4245] ? __virt_addr_valid+0x17f/0x530 [ 71.345521][ T4245] ? __virt_addr_valid+0x45b/0x530 [ 71.350726][ T4245] ? __phys_addr_symbol+0x2b/0x70 [ 71.355764][ T4245] ? strncpy_from_user+0x1f9/0x360 [ 71.360880][ T4245] ? getname_flags+0x1f9/0x4f0 [ 71.365647][ T4245] ? lockdep_hardirqs_on+0x94/0x130 [ 71.370849][ T4245] __x64_sys_rename+0x82/0x90 [ 71.375536][ T4245] do_syscall_64+0x3b/0xb0 [ 71.379968][ T4245] ? clear_bhb_loop+0x45/0xa0 [ 71.384645][ T4245] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 71.390548][ T4245] RIP: 0033:0x7fd4c2eb77b9 [ 71.394982][ T4245] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 71.414607][ T4245] RSP: 002b:00007ffe7ad919e8 EFLAGS: 0