Warning: Permanently added '10.128.0.107' (ECDSA) to the list of known hosts. executing program [ 33.186592][ T5924] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5924 'syz-executor745' [ 33.213397][ T5924] loop0: detected capacity change from 0 to 4096 [ 33.217867][ T5924] ntfs3: loop0: Different NTFS' sector size (4096) and media sector size (512) [ 33.229841][ T5924] ntfs3: loop0: Mark volume as dirty due to NTFS errors [ 33.242527][ T5924] [ 33.243149][ T5924] ============================================ [ 33.244412][ T5924] WARNING: possible recursive locking detected [ 33.245738][ T5924] 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 Not tainted [ 33.247115][ T5924] -------------------------------------------- [ 33.248461][ T5924] syz-executor745/5924 is trying to acquire lock: [ 33.249814][ T5924] ffff0000e1591e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x278/0x488 [ 33.251818][ T5924] [ 33.251818][ T5924] but task is already holding lock: [ 33.253424][ T5924] ffff0000e1596840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf4/0x1a4 [ 33.255415][ T5924] [ 33.255415][ T5924] other info that might help us debug this: [ 33.257173][ T5924] Possible unsafe locking scenario: [ 33.257173][ T5924] [ 33.258689][ T5924] CPU0 [ 33.259401][ T5924] ---- [ 33.260131][ T5924] lock(&ni->ni_lock/4); [ 33.260988][ T5924] lock(&ni->ni_lock/4); [ 33.261888][ T5924] [ 33.261888][ T5924] *** DEADLOCK *** [ 33.261888][ T5924] [ 33.263665][ T5924] May be due to missing lock nesting notation [ 33.263665][ T5924] [ 33.265367][ T5924] 2 locks held by syz-executor745/5924: [ 33.266566][ T5924] #0: ffff0000e1596ae0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow+0x50/0x84 [ 33.268677][ T5924] #1: ffff0000e1596840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf4/0x1a4 [ 33.270652][ T5924] [ 33.270652][ T5924] stack backtrace: [ 33.271967][ T5924] CPU: 1 PID: 5924 Comm: syz-executor745 Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 [ 33.274086][ T5924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 33.276477][ T5924] Call trace: [ 33.277093][ T5924] dump_backtrace+0x1b8/0x1e4 [ 33.278045][ T5924] show_stack+0x2c/0x44 [ 33.278919][ T5924] dump_stack_lvl+0xd0/0x124 [ 33.279831][ T5924] dump_stack+0x1c/0x28 [ 33.280723][ T5924] __lock_acquire+0x6310/0x764c [ 33.281766][ T5924] lock_acquire+0x238/0x718 [ 33.282699][ T5924] __mutex_lock_common+0x190/0x21a0 [ 33.283754][ T5924] mutex_lock_nested+0x2c/0x38 [ 33.284818][ T5924] mi_read+0x278/0x488 [ 33.285698][ T5924] ntfs_iget5+0x360/0x2c18 [ 33.286594][ T5924] dir_search_u+0x298/0x324 [ 33.287589][ T5924] ntfs_lookup+0x104/0x1a4 [ 33.288517][ T5924] __lookup_slow+0x250/0x374 [ 33.289619][ T5924] lookup_slow+0x60/0x84 [ 33.290542][ T5924] walk_component+0x280/0x36c [ 33.291514][ T5924] path_lookupat+0x13c/0x3d0 [ 33.292443][ T5924] filename_lookup+0x1d4/0x4e0 [ 33.293398][ T5924] user_path_at_empty+0x5c/0x1a4 [ 33.294567][ T5924] path_setxattr+0xbc/0x258 [ 33.295523][ T5924] __arm64_sys_setxattr+0xbc/0xd8 [ 33.296578][ T5924] invoke_syscall+0x98/0x2c0 [ 33.297578][ T5924] el0_svc_common+0x138/0x258 [ 33.298541][ T5924] do_el0_svc+0x64/0x198 [ 33.299428][ T5924] el0_svc+0x4c/0x15c [ 33.300291][ T5924] el0t_64_sync_handler+0x84/0xf0 [ 33.301312][ T5924] el0t_64_sync+0x190/0x194