====================================================== WARNING: possible circular locking dependency detected 6.11.0-rc1-syzkaller-00154-gc0ecd6388360 #0 Not tainted ------------------------------------------------------ syz.0.105/6340 is trying to acquire lock: ffff88807b24e7d0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ffff88807b24e7d0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_read_folio+0xc0/0x210 fs/ntfs3/inode.c:718 but task is already holding lock: ffff88807b24ec08 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] ffff88807b24ec08 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2475 [inline] ffff88807b24ec08 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_get_pages+0xb1d/0x2090 mm/filemap.c:2536 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (mapping.invalidate_lock#4){.+.+}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] filemap_fault+0x658/0x1760 mm/filemap.c:3302 __do_fault+0x135/0x460 mm/memory.c:4655 do_shared_fault mm/memory.c:5121 [inline] do_fault mm/memory.c:5195 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault+0x1164/0x6eb0 mm/memory.c:5522 __handle_mm_fault mm/memory.c:5665 [inline] handle_mm_fault+0xf70/0x1880 mm/memory.c:5833 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 -> #2 (&vma->vm_lock->lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_write+0x99/0x220 kernel/locking/rwsem.c:1579 vma_start_write include/linux/mm.h:743 [inline] vma_link+0x270/0x4f0 mm/mmap.c:457 insert_vm_struct+0x2f7/0x410 mm/mmap.c:3484 __bprm_mm_init fs/exec.c:291 [inline] bprm_mm_init fs/exec.c:395 [inline] alloc_bprm+0x81f/0xda0 fs/exec.c:1623 kernel_execve+0x99/0xa50 fs/exec.c:2046 try_to_run_init_process init/main.c:1395 [inline] kernel_init+0xed/0x2b0 init/main.c:1523 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #1 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __might_fault+0xc6/0x120 mm/memory.c:6388 _inline_copy_to_user include/linux/uaccess.h:176 [inline] _copy_to_user+0x2a/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:209 [inline] fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145 ni_fiemap+0x4f5/0x1910 fs/ntfs3/frecord.c:1993 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1279 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #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+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_read_folio+0xc0/0x210 fs/ntfs3/inode.c:718 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2355 filemap_create_folio mm/filemap.c:2483 [inline] filemap_get_pages+0xdf8/0x2090 mm/filemap.c:2536 filemap_splice_read+0x654/0xeb0 mm/filemap.c:2894 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x4b7/0xc90 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xe20 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ni->ni_lock/4 --> &vma->vm_lock->lock --> mapping.invalidate_lock#4 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(mapping.invalidate_lock#4); lock(&vma->vm_lock->lock); lock(mapping.invalidate_lock#4); lock(&ni->ni_lock/4); *** DEADLOCK *** 1 lock held by syz.0.105/6340: #0: ffff88807b24ec08 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] #0: ffff88807b24ec08 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2475 [inline] #0: ffff88807b24ec08 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_get_pages+0xb1d/0x2090 mm/filemap.c:2536 stack backtrace: CPU: 0 UID: 0 PID: 6340 Comm: syz.0.105 Not tainted 6.11.0-rc1-syzkaller-00154-gc0ecd6388360 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_noncircular+0x36a/0x4a0 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+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_read_folio+0xc0/0x210 fs/ntfs3/inode.c:718 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2355 filemap_create_folio mm/filemap.c:2483 [inline] filemap_get_pages+0xdf8/0x2090 mm/filemap.c:2536 filemap_splice_read+0x654/0xeb0 mm/filemap.c:2894 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x4b7/0xc90 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xe20 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f98175773b9 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:00007f981831c048 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f9817705f80 RCX: 00007f98175773b9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f98175e48e6 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011f06 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9817705f80 R15: 00007fff967e56f8