ntfs3: loop4: ino=1b, "file0" ntfs_iget5 ============================================ WARNING: possible recursive locking detected 6.1.29-syzkaller #0 Not tainted -------------------------------------------- syz-executor.4/8959 is trying to acquire lock: ffff0001269f8fc0 (&ni->ni_lock){+.+.}-{3:3}, at: ntfs_set_state+0x1a4/0x5c4 fs/ntfs3/fsntfs.c:920 but task is already holding lock: ffff00012c16efa0 (&ni->ni_lock){+.+.}-{3:3}, at: ni_trylock fs/ntfs3/ntfs_fs.h:1124 [inline] ffff00012c16efa0 (&ni->ni_lock){+.+.}-{3:3}, at: ni_write_inode+0x134/0xfb8 fs/ntfs3/frecord.c:3240 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ni->ni_lock); lock(&ni->ni_lock); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by syz-executor.4/8959: #0: ffff0000c3360460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff00012c16f240 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff00012c16f240 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63 #2: ffff00012c16efa0 (&ni->ni_lock){+.+.}-{3:3}, at: ni_trylock fs/ntfs3/ntfs_fs.h:1124 [inline] #2: ffff00012c16efa0 (&ni->ni_lock){+.+.}-{3:3}, at: ni_write_inode+0x134/0xfb8 fs/ntfs3/frecord.c:3240 stack backtrace: CPU: 1 PID: 8959 Comm: syz-executor.4 Not tainted 6.1.29-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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/0x5c lib/dump_stack.c:113 __lock_acquire+0x6310/0x764c kernel/locking/lockdep.c:5056 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5669 __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+0x1a4/0x5c4 fs/ntfs3/fsntfs.c:920 ntfs_bad_inode+0x88/0x9c fs/ntfs3/fsntfs.c:885 ntfs_iget5+0x2d4/0x2b28 fs/ntfs3/inode.c:520 ni_update_parent+0x688/0xa58 fs/ntfs3/frecord.c:3196 ni_write_inode+0xc4c/0xfb8 fs/ntfs3/frecord.c:3291 ntfs_sync_inode+0x2c/0x3c fs/ntfs3/inode.c:1025 ntfs_truncate fs/ntfs3/file.c:508 [inline] ntfs3_setattr+0x784/0x974 fs/ntfs3/file.c:792 notify_change+0xc24/0xec0 fs/attr.c:482 do_truncate+0x1c0/0x28c fs/open.c:65 vfs_truncate+0x2c4/0x36c fs/open.c:111 do_sys_truncate+0xec/0x1b4 fs/open.c:134 __do_sys_truncate fs/open.c:146 [inline] __se_sys_truncate fs/open.c:144 [inline] __arm64_sys_truncate+0x5c/0x70 fs/open.c:144 __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:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 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:581 ntfs3: loop4: Mark volume as dirty due to NTFS errors