Hao Sun says: ==================== bpf: Fix incorrect immediate spill Immediate is incorrectly cast to u32 before being spilled, losing sign information. The range information is incorrect after load again. Fix immediate spill by remove the cast. The second patch add a test case for this. Signed-off-by: Hao Sun <sunhao.th@gmail.com> --- Changes in v3: - Change the expected log to fix the test case - Link to v2: https://lore.kernel.org/r/20231101-fix-check-stack-write-v2-0-cb7c17b869b0@gmail.com Changes in v2: - Add fix and cc tags. - Link to v1: https://lore.kernel.org/r/20231026-fix-check-stack-write-v1-0-6b325ef3ce7e@gmail.com --- ==================== Link: https://lore.kernel.org/r/20231101-fix-check-stack-write-v3-0-f05c2b1473d5@gmail.com Signed-off-by: Alexei Starovoitov <ast@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.
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