====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc2-syzkaller-gfac04efc5c79 #0 Not tainted ------------------------------------------------------ syz.1.300/8348 is trying to acquire lock: ffff0000db7f9708 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ffff0000db7f9708 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_fallocate+0x4d4/0xfd0 fs/ntfs3/file.c:611 but task is already holding lock: ffff0000db7f9b40 (mapping.invalidate_lock#7){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline] ffff0000db7f9b40 (mapping.invalidate_lock#7){++++}-{4:4}, at: ntfs_fallocate+0x39c/0xfd0 fs/ntfs3/file.c:596 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (mapping.invalidate_lock#7){++++}-{4:4}: down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] filemap_fault+0x5c0/0x1310 mm/filemap.c:3332 __do_fault+0x11c/0x374 mm/memory.c:4907 do_shared_fault mm/memory.c:5386 [inline] do_fault mm/memory.c:5460 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x1348/0x5890 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0xf0c/0x17b0 mm/memory.c:6112 do_page_fault+0x404/0x10a8 arch/arm64/mm/fault.c:647 do_translation_fault+0xc4/0x114 arch/arm64/mm/fault.c:783 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:919 el0_da+0x60/0x178 arch/arm64/kernel/entry-common.c:604 el0t_64_sync_handler+0xcc/0x108 arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #2 (&vma->vm_lock->lock){++++}-{4:4}: down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 vma_start_write include/linux/mm.h:769 [inline] vma_link+0x248/0x49c mm/vma.c:1691 insert_vm_struct+0x284/0x378 mm/mmap.c:1740 __bprm_mm_init fs/exec.c:289 [inline] bprm_mm_init fs/exec.c:393 [inline] alloc_bprm+0x4e8/0x940 fs/exec.c:1544 kernel_execve+0xa4/0x820 fs/exec.c:1974 run_init_process+0x1bc/0x1ec init/main.c:1387 try_to_run_init_process init/main.c:1394 [inline] kernel_init+0xdc/0x2a0 init/main.c:1522 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 -> #1 (&mm->mmap_lock){++++}-{4:4}: __might_fault+0xc4/0x124 mm/memory.c:6751 _inline_copy_to_user include/linux/uaccess.h:192 [inline] copy_to_user include/linux/uaccess.h:223 [inline] fiemap_fill_next_extent+0x1b4/0x424 fs/ioctl.c:145 ni_fiemap+0x7c0/0xe14 fs/ntfs3/frecord.c:2059 ntfs_fiemap+0x110/0x168 fs/ntfs3/file.c:1360 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1de8/0x2aa8 fs/ioctl.c:840 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __arm64_sys_ioctl+0xe4/0x1cc fs/ioctl.c:892 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #0 (&ni->ni_lock#3/5){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x34f0/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 __mutex_lock_common+0x218/0x28f4 kernel/locking/mutex.c:585 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_fallocate+0x4d4/0xfd0 fs/ntfs3/file.c:611 vfs_fallocate+0x484/0x5c0 fs/open.c:327 ioctl_preallocate+0x2dc/0x334 fs/ioctl.c:290 do_vfs_ioctl+0x1ea4/0x2aa8 fs/ioctl.c:885 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __arm64_sys_ioctl+0xe4/0x1cc fs/ioctl.c:892 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 other info that might help us debug this: Chain exists of: &ni->ni_lock#3/5 --> &vma->vm_lock->lock --> mapping.invalidate_lock#7 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(mapping.invalidate_lock#7); lock(&vma->vm_lock->lock); lock(mapping.invalidate_lock#7); lock(&ni->ni_lock#3/5); *** DEADLOCK *** 3 locks held by syz.1.300/8348: #0: ffff0000c9364420 (sb_writers#16){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline] #0: ffff0000c9364420 (sb_writers#16){.+.+}-{0:0}, at: vfs_fallocate+0x428/0x5c0 fs/open.c:326 #1: ffff0000db7f99a0 (&sb->s_type->i_mutex_key#35){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #1: ffff0000db7f99a0 (&sb->s_type->i_mutex_key#35){+.+.}-{4:4}, at: ntfs_fallocate+0x2dc/0xfd0 fs/ntfs3/file.c:582 #2: ffff0000db7f9b40 (mapping.invalidate_lock#7){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline] #2: ffff0000db7f9b40 (mapping.invalidate_lock#7){++++}-{4:4}, at: ntfs_fallocate+0x39c/0xfd0 fs/ntfs3/file.c:596 stack backtrace: CPU: 0 UID: 0 PID: 8348 Comm: syz.1.300 Not tainted 6.13.0-rc2-syzkaller-gfac04efc5c79 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 print_circular_bug+0x154/0x1c0 kernel/locking/lockdep.c:2074 check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x34f0/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 __mutex_lock_common+0x218/0x28f4 kernel/locking/mutex.c:585 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_fallocate+0x4d4/0xfd0 fs/ntfs3/file.c:611 vfs_fallocate+0x484/0x5c0 fs/open.c:327 ioctl_preallocate+0x2dc/0x334 fs/ioctl.c:290 do_vfs_ioctl+0x1ea4/0x2aa8 fs/ioctl.c:885 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __arm64_sys_ioctl+0xe4/0x1cc fs/ioctl.c:892 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600