RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-02 23:22:07 +00:00
Code Issues Activity Actions

Kernel: Use copy_typed_from_user<T> for fetching syscall parameters

Browse source
This commit is contained in:
Andreas Kling 2021-09-05 17:51:37 +02:00
parent d7e5768763
commit 789db813d3
24 changed files with 42 additions and 81 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Kernel/Syscalls/link.cpp
View file

@ -14,8 +14,7 @@ KResultOr<FlatPtr> Process::sys$link(Userspace<const Syscall::SC_link_params*> u
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(cpath);
Syscall::SC_link_params params;
TRY(copy_from_user(&params, user_params));
auto params = TRY(copy_typed_from_user(user_params));
auto old_path = TRY(try_copy_kstring_from_user(params.old_path));
auto new_path = TRY(try_copy_kstring_from_user(params.new_path));
return VirtualFileSystem::the().link(old_path->view(), new_path->view(), current_directory());
@ -25,8 +24,8 @@ KResultOr<FlatPtr> Process::sys$symlink(Userspace<const Syscall::SC_symlink_para
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(cpath);
Syscall::SC_symlink_params params;
TRY(copy_from_user(&params, user_params));
auto params = TRY(copy_typed_from_user(user_params));
auto target = TRY(get_syscall_path_argument(params.target));
auto linkpath = TRY(get_syscall_path_argument(params.linkpath));
return VirtualFileSystem::the().symlink(target->view(), linkpath->view(), current_directory());