====================================================== WARNING: possible circular locking dependency detected 6.1.114-syzkaller #0 Not tainted ------------------------------------------------------ syz.4.157/4816 is trying to acquire lock: ffff0000f1258100 (&ni->ni_lock){+.+.}-{3:3}, at: ntfs_set_state+0x1a4/0x584 fs/ntfs3/fsntfs.c:920 but task is already holding lock: ffff0000f12b8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1101 [inline] ffff0000f12b8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_set_ea+0x1cc/0x1280 fs/ntfs3/xattr.c:332 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->ni_lock/4){+.+.}-{3:3}: __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1101 [inline] mi_read+0x26c/0x4d8 fs/ntfs3/record.c:148 ntfs_read_mft fs/ntfs3/inode.c:69 [inline] ntfs_iget5+0x360/0x2be8 fs/ntfs3/inode.c:525 ni_update_parent+0x6f0/0xac8 fs/ntfs3/frecord.c:3274 ni_write_inode+0x8a0/0xe3c fs/ntfs3/frecord.c:3372 ntfs3_write_inode+0x70/0x98 fs/ntfs3/inode.c:1031 write_inode fs/fs-writeback.c:1460 [inline] __writeback_single_inode+0x614/0x1770 fs/fs-writeback.c:1677 writeback_single_inode+0x1c0/0x79c fs/fs-writeback.c:1733 sync_inode_metadata+0xd4/0x144 fs/fs-writeback.c:2789 __generic_file_fsync+0x13c/0x19c fs/libfs.c:1143 generic_file_fsync+0x7c/0xf8 fs/libfs.c:1173 vfs_fsync_range+0x168/0x188 fs/sync.c:188 generic_write_sync include/linux/fs.h:2962 [inline] ntfs_file_write_iter+0x49c/0x580 fs/ntfs3/file.c:1171 do_iter_write+0x534/0x964 fs/read_write.c:861 vfs_writev fs/read_write.c:934 [inline] do_pwritev+0x1ec/0x334 fs/read_write.c:1031 __do_sys_pwritev2 fs/read_write.c:1090 [inline] __se_sys_pwritev2 fs/read_write.c:1081 [inline] __arm64_sys_pwritev2+0xd4/0x108 fs/read_write.c:1081 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 -> #0 (&ni->ni_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x3338/0x7680 kernel/locking/lockdep.c:5049 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 ntfs_set_state+0x1a4/0x584 fs/ntfs3/fsntfs.c:920 ni_find_attr+0x5f8/0x7b8 fs/ntfs3/frecord.c:239 attr_set_size+0x3b0/0x346c fs/ntfs3/attrib.c:436 ntfs_set_ea+0x7ac/0x1280 fs/ntfs3/xattr.c:458 ntfs_setxattr+0x17c/0x724 fs/ntfs3/xattr.c:954 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ni->ni_lock/4); lock(&ni->ni_lock); lock(&ni->ni_lock/4); lock(&ni->ni_lock); *** DEADLOCK *** 3 locks held by syz.4.157/4816: #0: ffff0000cd472460 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff0000f12b83a0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff0000f12b83a0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:308 #2: ffff0000f12b8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1101 [inline] #2: ffff0000f12b8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_set_ea+0x1cc/0x1280 fs/ntfs3/xattr.c:332 stack backtrace: CPU: 1 PID: 4816 Comm: syz.4.157 Not tainted 6.1.114-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2048 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x3338/0x7680 kernel/locking/lockdep.c:5049 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 ntfs_set_state+0x1a4/0x584 fs/ntfs3/fsntfs.c:920 ni_find_attr+0x5f8/0x7b8 fs/ntfs3/frecord.c:239 attr_set_size+0x3b0/0x346c fs/ntfs3/attrib.c:436 ntfs_set_ea+0x7ac/0x1280 fs/ntfs3/xattr.c:458 ntfs_setxattr+0x17c/0x724 fs/ntfs3/xattr.c:954 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ntfs3: loop4: Mark volume as dirty due to NTFS errors ntfs3: loop4: ino=1b, "file0" attr_set_size