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author	Tulio A M Mendes <[email protected]>
	Sun, 8 Feb 2026 03:01:39 +0000 (00:01 -0300)
committer	Tulio A M Mendes <[email protected]>
	Sun, 8 Feb 2026 03:01:39 +0000 (00:01 -0300)
commit	159c1a447bcb02ddf00dbc34bf42a7a00595084b
tree	8099157f72e18dcdfc4c74c1d8dd2b597d91f3ec	tree \| snapshot
parent	f2a0ff093b814c8baf416324368fb15c677b37a7	commit \| diff

posix: tighten uaccess + errno helpers

Return proper -errno from remaining syscall helpers (pipe/fd allocation) and harden copy_to_user to require writable user mappings on x86. copy_{to,from}_user now return -EFAULT on invalid ranges.

src/kernel/syscall.c		diff \| blob \| blame \| history
src/kernel/uaccess.c		diff \| blob \| blame \| history

AdrOS - A Unix-like Operating System for hobby/academic study.

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