loop1: detected capacity change from 0 to 4096 ntfs3: loop1: Different NTFS sector size (1024) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected 6.11.0-rc3-syzkaller-g5c43d43bad35 #0 Not tainted ------------------------------------------------------ syz.1.492/8748 is trying to acquire lock: ffff0000eaa367d0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ffff0000eaa367d0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_fallocate+0x4d4/0xfb4 fs/ntfs3/file.c:564 but task is already holding lock: ffff0000eaa36c08 (mapping.invalidate_lock#8){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:844 [inline] ffff0000eaa36c08 (mapping.invalidate_lock#8){++++}-{3:3}, at: ntfs_fallocate+0x39c/0xfb4 fs/ntfs3/file.c:549 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (mapping.invalidate_lock#8){++++}-{3:3}: down_read+0x58/0x2fc kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] filemap_fault+0x528/0x10a0 mm/filemap.c:3302 __do_fault+0x11c/0x374 mm/memory.c:4655 do_read_fault mm/memory.c:5061 [inline] do_fault mm/memory.c:5191 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault+0x2774/0x56b4 mm/memory.c:5522 __handle_mm_fault mm/memory.c:5665 [inline] handle_mm_fault+0xe38/0x1460 mm/memory.c:5833 do_page_fault+0x428/0xb1c arch/arm64/mm/fault.c:613 do_translation_fault+0xc4/0x114 arch/arm64/mm/fault.c:690 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:826 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:432 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:492 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:593 __arch_copy_from_user+0x1b4/0x230 arch/arm64/lib/copy_template.S:164 copy_from_iter include/linux/uio.h:204 [inline] iterate_tty_write drivers/tty/tty_io.c:1018 [inline] file_tty_write+0x3a4/0x7b8 drivers/tty/tty_io.c:1096 tty_write+0x48/0x58 drivers/tty/tty_io.c:1117 new_sync_write fs/read_write.c:497 [inline] vfs_write+0x940/0xc80 fs/read_write.c:590 ksys_write+0x15c/0x26c fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:652 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #1 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0xc4/0x124 mm/memory.c:6388 _inline_copy_to_user include/linux/uaccess.h:176 [inline] copy_to_user include/linux/uaccess.h:207 [inline] ni_fiemap+0x11a0/0x14dc fs/ntfs3/frecord.c:2140 ntfs_fiemap+0x110/0x168 fs/ntfs3/file.c:1279 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1d70/0x2a90 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #0 (&ni->ni_lock/4){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain kernel/locking/lockdep.c:3868 [inline] __lock_acquire+0x33d8/0x779c kernel/locking/lockdep.c:5142 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5759 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608 __mutex_lock kernel/locking/mutex.c:752 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_fallocate+0x4d4/0xfb4 fs/ntfs3/file.c:564 vfs_fallocate+0x48c/0x5d8 fs/open.c:334 ioctl_preallocate+0x288/0x334 fs/ioctl.c:291 do_vfs_ioctl+0x1ef0/0x2a90 fs/ioctl.c:886 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 other info that might help us debug this: Chain exists of: &ni->ni_lock/4 --> &mm->mmap_lock --> mapping.invalidate_lock#8 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(mapping.invalidate_lock#8); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#8); lock(&ni->ni_lock/4); *** DEADLOCK *** 3 locks held by syz.1.492/8748: #0: ffff0000ee6ac420 (sb_writers#19){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2876 [inline] #0: ffff0000ee6ac420 (sb_writers#19){.+.+}-{0:0}, at: vfs_fallocate+0x42c/0x5d8 fs/open.c:333 #1: ffff0000eaa36a68 (&sb->s_type->i_mutex_key#32){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline] #1: ffff0000eaa36a68 (&sb->s_type->i_mutex_key#32){+.+.}-{3:3}, at: ntfs_fallocate+0x2dc/0xfb4 fs/ntfs3/file.c:535 #2: ffff0000eaa36c08 (mapping.invalidate_lock#8){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:844 [inline] #2: ffff0000eaa36c08 (mapping.invalidate_lock#8){++++}-{3:3}, at: ntfs_fallocate+0x39c/0xfb4 fs/ntfs3/file.c:549 stack backtrace: CPU: 1 UID: 0 PID: 8748 Comm: syz.1.492 Not tainted 6.11.0-rc3-syzkaller-g5c43d43bad35 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:119 dump_stack+0x1c/0x28 lib/dump_stack.c:128 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2059 check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2186 check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain kernel/locking/lockdep.c:3868 [inline] __lock_acquire+0x33d8/0x779c kernel/locking/lockdep.c:5142 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5759 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608 __mutex_lock kernel/locking/mutex.c:752 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_fallocate+0x4d4/0xfb4 fs/ntfs3/file.c:564 vfs_fallocate+0x48c/0x5d8 fs/open.c:334 ioctl_preallocate+0x288/0x334 fs/ioctl.c:291 do_vfs_ioctl+0x1ef0/0x2a90 fs/ioctl.c:886 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598