mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-07-31 06:42:16 -04:00
e884edbb84
Both INT (INT n, INT1, INT3, INTO) and UD (UD0, UD1, UD2) serve special purposes in the kernel, e.g., INT3 is used by KGDB and UD2 is involved in LLVM-KCFI instrumentation. At the same time, attaching kprobes on these instructions (particularly UD) will pollute the stack trace dumped in the kernel ring buffer, since the exception is triggered in the copy buffer rather than the original location. Check for INT and UD in can_probe and reject any kprobes trying to attach to these instructions. Link: https://lore.kernel.org/all/20240204031300.830475-3-jinghao7@illinois.edu/ Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Jinghao Jia <jinghao7@illinois.edu> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@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 Restructured Text 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.