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Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices: OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
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Jesper Dangaard Brouer 5010e94842 samples/bpf: bpf_load.c detect and abort if ELF maps section size is wrong 
The struct bpf_map_def was extended in commit fb30d4b712 ("bpf: Add tests
for map-in-map") with member unsigned int inner_map_idx.  This changed the size
of the maps section in the generated ELF _kern.o files.

Unfortunately the loader in bpf_load.c does not detect or handle this.  Thus,
older _kern.o files became incompatible, and caused hard-to-debug errors
where the syscall validation rejected BPF_MAP_CREATE request.

This patch only detect the situation and aborts load_bpf_file(). It also
add code comments warning people that read this loader for inspiration
for these pitfalls.

Fixes: fb30d4b712 ("bpf: Add tests for map-in-map")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-30 22:41:59 -04:00
arch
block
certs
crypto
Documentation
drivers liquidio: silence a locking static checker warning 2017-04-30 22:41:07 -04:00
firmware
fs
include bpf: Fix inaccurate helper function description 2017-04-30 22:24:58 -04:00
init
ipc
kernel
lib
mm
net lwtunnel: fix error path in lwtunnel_fill_encap() 2017-04-30 22:41:29 -04:00
samples samples/bpf: bpf_load.c detect and abort if ELF maps section size is wrong 2017-04-30 22:41:59 -04:00
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README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.