ntfs3: loop4: Mark volume as dirty due to NTFS errors ====================================================== WARNING: possible circular locking dependency detected 5.15.167-syzkaller #0 Not tainted ------------------------------------------------------ syz.4.242/4954 is trying to acquire lock: ffff88807e74d528 (&mm->mmap_lock){++++}-{3:3}, at: get_current arch/x86/include/asm/current.h:15 [inline] ffff88807e74d528 (&mm->mmap_lock){++++}-{3:3}, at: internal_get_user_pages_fast+0x1c7/0x2810 mm/gup.c:2895 but task is already holding lock: ffff88806005a120 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: inode_trylock include/linux/fs.h:809 [inline] ffff88806005a120 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: ntfs_file_write_iter+0x1ca/0x540 fs/ntfs3/file.c:1122 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 down_write+0x38/0x60 kernel/locking/rwsem.c:1551 inode_lock include/linux/fs.h:789 [inline] ntfs_file_mmap+0x589/0x7e0 fs/ntfs3/file.c:401 call_mmap include/linux/fs.h:2177 [inline] mmap_region+0x10e7/0x1670 mm/mmap.c:1791 do_mmap+0x78d/0xe00 mm/mmap.c:1575 vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:551 ksys_mmap_pgoff+0x559/0x780 mm/mmap.c:1624 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #0 (&mm->mmap_lock){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 internal_get_user_pages_fast+0x212/0x2810 mm/gup.c:2895 iov_iter_get_pages+0x25a/0x570 lib/iov_iter.c:1544 dio_refill_pages fs/direct-io.c:173 [inline] dio_get_page fs/direct-io.c:217 [inline] do_direct_IO fs/direct-io.c:938 [inline] do_blockdev_direct_IO fs/direct-io.c:1276 [inline] __blockdev_direct_IO+0x1419/0x4f40 fs/direct-io.c:1368 blockdev_direct_IO include/linux/fs.h:3308 [inline] ntfs_direct_IO+0x193/0x360 fs/ntfs3/inode.c:798 generic_file_direct_write+0x204/0x460 mm/filemap.c:3687 __generic_file_write_iter+0x2a2/0x4f0 mm/filemap.c:3869 ntfs_file_write_iter+0x48b/0x540 fs/ntfs3/file.c:1143 call_write_iter include/linux/fs.h:2172 [inline] aio_write+0x566/0x780 fs/aio.c:1594 io_submit_one+0x768/0x18d0 fs/aio.c:2013 __do_sys_io_submit fs/aio.c:2072 [inline] __se_sys_io_submit+0x17b/0x2f0 fs/aio.c:2042 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#34); lock(&mm->mmap_lock); lock(&sb->s_type->i_mutex_key#34); lock(&mm->mmap_lock); *** DEADLOCK *** 1 lock held by syz.4.242/4954: #0: ffff88806005a120 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: inode_trylock include/linux/fs.h:809 [inline] #0: ffff88806005a120 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: ntfs_file_write_iter+0x1ca/0x540 fs/ntfs3/file.c:1122 stack backtrace: CPU: 0 PID: 4954 Comm: syz.4.242 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 internal_get_user_pages_fast+0x212/0x2810 mm/gup.c:2895 iov_iter_get_pages+0x25a/0x570 lib/iov_iter.c:1544 dio_refill_pages fs/direct-io.c:173 [inline] dio_get_page fs/direct-io.c:217 [inline] do_direct_IO fs/direct-io.c:938 [inline] do_blockdev_direct_IO fs/direct-io.c:1276 [inline] __blockdev_direct_IO+0x1419/0x4f40 fs/direct-io.c:1368 blockdev_direct_IO include/linux/fs.h:3308 [inline] ntfs_direct_IO+0x193/0x360 fs/ntfs3/inode.c:798 generic_file_direct_write+0x204/0x460 mm/filemap.c:3687 __generic_file_write_iter+0x2a2/0x4f0 mm/filemap.c:3869 ntfs_file_write_iter+0x48b/0x540 fs/ntfs3/file.c:1143 call_write_iter include/linux/fs.h:2172 [inline] aio_write+0x566/0x780 fs/aio.c:1594 io_submit_one+0x768/0x18d0 fs/aio.c:2013 __do_sys_io_submit fs/aio.c:2072 [inline] __se_sys_io_submit+0x17b/0x2f0 fs/aio.c:2042 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f3f0bacaf39 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:00007f3f09f43038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f3f0bc82f80 RCX: 00007f3f0bacaf39 RDX: 0000000020000540 RSI: 000000000000003b RDI: 00007f3f09f1a000 RBP: 00007f3f0bb3d216 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3f0bc82f80 R15: 00007fffed3e30c8