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commit eb71f5c433e1c6dff089b315881dec40a88a7baf upstream. The bpf_tail_call() index should be treated as a u32 value. Let's zero-extend it to avoid calling wrong BPF progs. See similar fixes for x86 [1]) and arm64 ([2]) for more details. [1]:90caccdd8c[2]:16338a9b3aCc: stable@vger.kernel.org Fixes:5dc615520c("LoongArch: Add BPF JIT support") Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.