Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts. executing program [ 32.558186][ T5926] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5926 'syz-executor261' [ 32.586089][ T5926] loop0: detected capacity change from 0 to 4096 [ 32.590425][ T5926] ntfs3: loop0: Different NTFS' sector size (4096) and media sector size (512) [ 32.602441][ T5926] ntfs3: loop0: Mark volume as dirty due to NTFS errors [ 32.614948][ T5926] [ 32.615471][ T5926] ============================================ [ 32.616753][ T5926] WARNING: possible recursive locking detected [ 32.618072][ T5926] 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 Not tainted [ 32.619430][ T5926] -------------------------------------------- [ 32.620735][ T5926] syz-executor261/5926 is trying to acquire lock: [ 32.622142][ T5926] ffff0000dfd49e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x278/0x488 [ 32.623956][ T5926] [ 32.623956][ T5926] but task is already holding lock: [ 32.625460][ T5926] ffff0000dfd4e840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf4/0x1a4 [ 32.627356][ T5926] [ 32.627356][ T5926] other info that might help us debug this: [ 32.629088][ T5926] Possible unsafe locking scenario: [ 32.629088][ T5926] [ 32.630683][ T5926] CPU0 [ 32.631423][ T5926] ---- [ 32.632074][ T5926] lock(&ni->ni_lock/4); [ 32.633002][ T5926] lock(&ni->ni_lock/4); [ 32.633960][ T5926] [ 32.633960][ T5926] *** DEADLOCK *** [ 32.633960][ T5926] [ 32.635755][ T5926] May be due to missing lock nesting notation [ 32.635755][ T5926] [ 32.637543][ T5926] 2 locks held by syz-executor261/5926: [ 32.638747][ T5926] #0: ffff0000dfd4eae0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow+0x50/0x84 [ 32.640867][ T5926] #1: ffff0000dfd4e840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf4/0x1a4 [ 32.642836][ T5926] [ 32.642836][ T5926] stack backtrace: [ 32.644188][ T5926] CPU: 0 PID: 5926 Comm: syz-executor261 Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 [ 32.646436][ T5926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 32.648521][ T5926] Call trace: [ 32.649221][ T5926] dump_backtrace+0x1b8/0x1e4 [ 32.650165][ T5926] show_stack+0x2c/0x44 [ 32.651107][ T5926] dump_stack_lvl+0xd0/0x124 [ 32.652086][ T5926] dump_stack+0x1c/0x28 [ 32.652955][ T5926] __lock_acquire+0x6310/0x764c [ 32.653990][ T5926] lock_acquire+0x238/0x718 [ 32.654938][ T5926] __mutex_lock_common+0x190/0x21a0 [ 32.656057][ T5926] mutex_lock_nested+0x2c/0x38 [ 32.657112][ T5926] mi_read+0x278/0x488 [ 32.657982][ T5926] ntfs_iget5+0x360/0x2c18 [ 32.658896][ T5926] dir_search_u+0x298/0x324 [ 32.659868][ T5926] ntfs_lookup+0x104/0x1a4 [ 32.660844][ T5926] __lookup_slow+0x250/0x374 [ 32.661857][ T5926] lookup_slow+0x60/0x84 [ 32.662774][ T5926] walk_component+0x280/0x36c [ 32.663895][ T5926] path_lookupat+0x13c/0x3d0 [ 32.664935][ T5926] filename_lookup+0x1d4/0x4e0 [ 32.665953][ T5926] user_path_at_empty+0x5c/0x1a4 [ 32.667039][ T5926] path_setxattr+0xbc/0x258 [ 32.668055][ T5926] __arm64_sys_setxattr+0xbc/0xd8 [ 32.669194][ T5926] invoke_syscall+0x98/0x2c0 [ 32.670196][ T5926] el0_svc_common+0x138/0x258 [ 32.671238][ T5926] do_el0_svc+0x64/0x198 [ 32.672170][ T5926] el0_svc+0x4c/0x15c [ 32.673058][ T5926] el0t_64_sync_handler+0x84/0xf0 [ 32.674094][ T5926] el0t_64_sync+0x190/0x194