diff options
Diffstat (limited to 'Kernel/Syscalls/readlink.cpp')
| -rw-r--r-- | Kernel/Syscalls/readlink.cpp | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/Kernel/Syscalls/readlink.cpp b/Kernel/Syscalls/readlink.cpp index d2b35733a9..b9da03db87 100644 --- a/Kernel/Syscalls/readlink.cpp +++ b/Kernel/Syscalls/readlink.cpp @@ -36,10 +36,7 @@ int Process::sys$readlink(Userspace<const Syscall::SC_readlink_params*> user_par REQUIRE_PROMISE(rpath); Syscall::SC_readlink_params params; - if (!validate_read_and_copy_typed(¶ms, user_params)) - return -EFAULT; - - if (!validate(params.buffer)) + if (!copy_from_user(¶ms, user_params)) return -EFAULT; auto path = get_syscall_path_argument(params.path); @@ -60,7 +57,8 @@ int Process::sys$readlink(Userspace<const Syscall::SC_readlink_params*> user_par auto& link_target = contents.value(); auto size_to_copy = min(link_target.size(), params.buffer.size); - copy_to_user(params.buffer.data, link_target.data(), size_to_copy); + if (!copy_to_user(params.buffer.data, link_target.data(), size_to_copy)) + return -EFAULT; // Note: we return the whole size here, not the copied size. return link_target.size(); } |