ntfs3(loop8): ino=1b, mi_enum_attr ntfs3(loop8): Mark volume as dirty due to NTFS errors afs: Unknown parameter 'dynØÞBÊó9(¬ÚÕõ§¿ú' ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.8.630/10776 is trying to acquire lock: ffff88805e1e0190 (&ni->file.run_lock#2){++++}-{4:4}, at: run_unpack_ex+0x7e5/0xba0 fs/ntfs3/run.c:1135 but task is already holding lock: ffff888030d06258 (&wnd->rw_lock){++++}-{4:4}, at: run_unpack_ex+0x701/0xba0 fs/ntfs3/run.c:1116 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&wnd->rw_lock){++++}-{4:4}: down_write_nested+0x3e/0x60 kernel/locking/rwsem.c:1706 ntfs_look_for_free_space+0xd3/0x600 fs/ntfs3/fsntfs.c:362 attr_allocate_clusters+0x1c1/0x6d0 fs/ntfs3/attrib.c:159 attr_set_size+0x14a4/0x2c70 fs/ntfs3/attrib.c:574 ntfs_set_size+0x164/0x200 fs/ntfs3/inode.c:863 ntfs_extend+0x1d9/0x970 fs/ntfs3/file.c:434 ntfs_setattr+0x2e8/0xbe0 fs/ntfs3/file.c:853 notify_change+0xc18/0xf60 fs/attr.c:546 do_truncate+0x1a4/0x220 fs/open.c:68 vfs_truncate+0x493/0x520 fs/open.c:118 do_sys_truncate+0xdb/0x190 fs/open.c:141 __do_sys_truncate fs/open.c:153 [inline] __se_sys_truncate fs/open.c:151 [inline] __x64_sys_truncate+0x5b/0x70 fs/open.c:151 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ni->file.run_lock#2){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868 down_read+0x97/0x1f0 kernel/locking/rwsem.c:1537 run_unpack_ex+0x7e5/0xba0 fs/ntfs3/run.c:1135 ntfs_read_mft fs/ntfs3/inode.c:401 [inline] ntfs_iget5+0x238b/0x3860 fs/ntfs3/inode.c:542 dir_search_u+0x1df/0x2c0 fs/ntfs3/dir.c:264 ntfs_lookup+0xfb/0x1f0 fs/ntfs3/namei.c:85 lookup_one_qstr_excl+0x131/0x360 fs/namei.c:1747 __start_dirop fs/namei.c:2866 [inline] start_dirop fs/namei.c:2875 [inline] filename_create+0x209/0x360 fs/namei.c:4879 do_mkdirat+0xca/0x4b0 fs/namei.c:5156 __do_sys_mkdirat fs/namei.c:5186 [inline] __se_sys_mkdirat fs/namei.c:5184 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:5184 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&wnd->rw_lock); lock(&ni->file.run_lock#2); lock(&wnd->rw_lock); rlock(&ni->file.run_lock#2); *** DEADLOCK *** 4 locks held by syz.8.630/10776: #0: ffff88805e4dc480 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:499 #1: ffff8880498e8b58 (&type->i_mutex_dir_key#11/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1072 [inline] #1: ffff8880498e8b58 (&type->i_mutex_dir_key#11/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2864 [inline] #1: ffff8880498e8b58 (&type->i_mutex_dir_key#11/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2875 [inline] #1: ffff8880498e8b58 (&type->i_mutex_dir_key#11/1){+.+.}-{4:4}, at: filename_create+0x1fb/0x360 fs/namei.c:4879 #2: ffff8880498e88a0 (&ni->ni_lock/6){+.+.}-{4:4}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1132 [inline] #2: ffff8880498e88a0 (&ni->ni_lock/6){+.+.}-{4:4}, at: ntfs_lookup+0xee/0x1f0 fs/ntfs3/namei.c:84 #3: ffff888030d06258 (&wnd->rw_lock){++++}-{4:4}, at: run_unpack_ex+0x701/0xba0 fs/ntfs3/run.c:1116 stack backtrace: CPU: 1 UID: 0 PID: 10776 Comm: syz.8.630 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868 down_read+0x97/0x1f0 kernel/locking/rwsem.c:1537 run_unpack_ex+0x7e5/0xba0 fs/ntfs3/run.c:1135 ntfs_read_mft fs/ntfs3/inode.c:401 [inline] ntfs_iget5+0x238b/0x3860 fs/ntfs3/inode.c:542 dir_search_u+0x1df/0x2c0 fs/ntfs3/dir.c:264 ntfs_lookup+0xfb/0x1f0 fs/ntfs3/namei.c:85 lookup_one_qstr_excl+0x131/0x360 fs/namei.c:1747 __start_dirop fs/namei.c:2866 [inline] start_dirop fs/namei.c:2875 [inline] filename_create+0x209/0x360 fs/namei.c:4879 do_mkdirat+0xca/0x4b0 fs/namei.c:5156 __do_sys_mkdirat fs/namei.c:5186 [inline] __se_sys_mkdirat fs/namei.c:5184 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:5184 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f578620f749 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 RSP: 002b:00007f578446e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f5786465fa0 RCX: 00007f578620f749 RDX: 0000000000000000 RSI: 0000200000000100 RDI: ffffffffffffff9c RBP: 00007f5786293f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5786466038 R14: 00007f5786465fa0 R15: 00007fff6f5d1de8