b338cb921e
This is a fix for a regression in commit2c78ee898d("bpf: Implement CAP_BPF"). Before the above commit it was possible to load network bpf programs with just the CAP_SYS_ADMIN privilege. The Android bpfloader happens to run in such a configuration (it has SYS_ADMIN but not NET_ADMIN) and creates maps and loads bpf programs for later use by Android's netd (which has NET_ADMIN but not SYS_ADMIN). Fixes:2c78ee898d("bpf: Implement CAP_BPF") Reported-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: John Stultz <john.stultz@linaro.org> Link: https://lore.kernel.org/bpf/20200620212616.93894-1-zenczykowski@gmail.com
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.