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Kernel: Use copy_typed_from_user<T> for fetching syscall parameters

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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
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7
Kernel/Syscalls/select.cpp
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@ -18,9 +18,8 @@ KResultOr<FlatPtr> Process::sys$select(Userspace<const Syscall::SC_select_params
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(stdio);
Syscall::SC_select_params params {};
TRY(copy_from_user(&params, user_params));
auto params = TRY(copy_typed_from_user(user_params));
if (params.nfds < 0)
return EINVAL;
@ -132,9 +131,7 @@ KResultOr<FlatPtr> Process::sys$poll(Userspace<const Syscall::SC_poll_params*> u
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(stdio);
Syscall::SC_poll_params params {};
TRY(copy_from_user(&params, user_params));
auto params = TRY(copy_typed_from_user(user_params));
if (params.nfds >= fds().max_open())
return ENOBUFS;