mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-12-27 11:06:41 -05:00
67678189e4
This patch adds a new ipe_bprm_creds_for_exec() hook that integrates with the AT_EXECVE_CHECK mechanism. To enable script enforcement, interpreters need to incorporate the AT_EXECVE_CHECK flag when calling execveat() on script files before execution. When a userspace interpreter calls execveat() with the AT_EXECVE_CHECK flag, this hook triggers IPE policy evaluation on the script file. The hook only triggers IPE when bprm->is_check is true, ensuring it's being called from an AT_EXECVE_CHECK context. It then builds an evaluation context for an IPE_OP_EXEC operation and invokes IPE policy. The kernel returns the policy decision to the interpreter, which can then decide whether to proceed with script execution. This extends IPE enforcement to indirectly executed scripts, permitting trusted scripts to execute while denying untrusted ones. Signed-off-by: Yanzhu Huang <yanzhuhuang@linux.microsoft.com> Signed-off-by: Fan Wu <wufan@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.