ntfs3: loop5: Different NTFS' sector size (1024) and media sector size (512) ====================================================== WARNING: possible circular locking dependency detected 5.15.178-syzkaller #0 Not tainted ------------------------------------------------------ syz.5.260/4987 is trying to acquire lock: ffff0000c80b1818 (&mm->mmap_lock){++++}-{3:3}, at: get_current arch/arm64/include/asm/current.h:19 [inline] ffff0000c80b1818 (&mm->mmap_lock){++++}-{3:3}, at: internal_get_user_pages_fast+0x198/0x2210 mm/gup.c:2895 but task is already holding lock: ffff0000ddf554c0 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] ffff0000ddf554c0 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: do_blockdev_direct_IO fs/direct-io.c:1169 [inline] ffff0000ddf554c0 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: __blockdev_direct_IO+0x34c/0x3824 fs/direct-io.c:1368 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}: down_write+0xbc/0x12c kernel/locking/rwsem.c:1551 inode_lock include/linux/fs.h:789 [inline] ntfs_file_mmap+0x4b0/0x688 fs/ntfs3/file.c:401 call_mmap include/linux/fs.h:2179 [inline] mmap_file+0x6c/0xc8 mm/util.c:1092 __mmap_region mm/mmap.c:1784 [inline] mmap_region+0xb24/0x1408 mm/mmap.c:2921 do_mmap+0x698/0xdb8 mm/mmap.c:1574 vm_mmap_pgoff+0x1a4/0x2b4 mm/util.c:551 ksys_mmap_pgoff+0x458/0x668 mm/mmap.c:1623 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #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 kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 internal_get_user_pages_fast+0x1e4/0x2210 mm/gup.c:2895 get_user_pages_fast+0x60/0x94 mm/gup.c:3003 iov_iter_get_pages+0x204/0x4cc 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+0xf10/0x3824 fs/direct-io.c:1368 blockdev_direct_IO include/linux/fs.h:3346 [inline] ntfs_direct_IO+0x174/0x304 fs/ntfs3/inode.c:798 generic_file_read_iter+0x240/0x3c4 mm/filemap.c:2772 ntfs_file_read_iter+0x184/0x1e0 fs/ntfs3/file.c:829 call_read_iter include/linux/fs.h:2168 [inline] new_sync_read fs/read_write.c:404 [inline] vfs_read+0x874/0xb18 fs/read_write.c:485 ksys_read+0x15c/0x26c fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:631 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#29); lock(&mm->mmap_lock); lock(&sb->s_type->i_mutex_key#29); lock(&mm->mmap_lock); *** DEADLOCK *** 2 locks held by syz.5.260/4987: #0: ffff0000dc144870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x128/0x170 fs/file.c:1058 #1: ffff0000ddf554c0 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000ddf554c0 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: do_blockdev_direct_IO fs/direct-io.c:1169 [inline] #1: ffff0000ddf554c0 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: __blockdev_direct_IO+0x34c/0x3824 fs/direct-io.c:1368 stack backtrace: CPU: 1 PID: 4987 Comm: syz.5.260 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __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:2011 check_noncircular+0x2cc/0x378 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 kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 internal_get_user_pages_fast+0x1e4/0x2210 mm/gup.c:2895 get_user_pages_fast+0x60/0x94 mm/gup.c:3003 iov_iter_get_pages+0x204/0x4cc 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+0xf10/0x3824 fs/direct-io.c:1368 blockdev_direct_IO include/linux/fs.h:3346 [inline] ntfs_direct_IO+0x174/0x304 fs/ntfs3/inode.c:798 generic_file_read_iter+0x240/0x3c4 mm/filemap.c:2772 ntfs_file_read_iter+0x184/0x1e0 fs/ntfs3/file.c:829 call_read_iter include/linux/fs.h:2168 [inline] new_sync_read fs/read_write.c:404 [inline] vfs_read+0x874/0xb18 fs/read_write.c:485 ksys_read+0x15c/0x26c fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:631 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584