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Filename Latest commit message Latest commit date
Yonghong Song 206dafb0a3 tools/bpf: fix a selftest test_btf failure 
Commit 9c65112744 ("selftests/btf: add initial BTF dedup tests")
added dedup tests in test_btf.c.
It broke the raw test:
 BTF raw test[71] (func proto (Bad arg name_off)):
    btf_raw_create:2905:FAIL Error getting string #65535, strs_cnt:1

The test itself encodes invalid func_proto parameter name
offset 0xffffFFFF as a negative test for the kernel.
The above commit changed the meaning of that offset and
resulted in a user space error.
  #define NAME_NTH(N) (0xffff0000 | N)
  #define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xffff0000)
  #define GET_NAME_NTH_IDX(X) (X & 0x0000ffff)

Currently, the kernel permits maximum name offset 0xffff.
Set the test name off as 0x0fffFFFF to trigger the kernel
verification failure.

Cc: Andrii Nakryiko <andriin@fb.com>
Fixes: 9c65112744 ("selftests/btf: add initial BTF dedup tests")
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-02-05 18:31:22 -08:00
arch bpf, riscv: add BPF JIT for RV64G 2019-02-05 16:56:10 +01:00
block
certs
crypto
Documentation bpf, doc: add RISC-V JIT to BPF documentation 2019-02-05 16:56:10 +01:00
drivers net: phy: aquantia: replace magic numbers with constants 2019-02-03 14:31:04 -08:00
firmware
fs socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes 2019-02-03 11:17:31 -08:00
include netdevice.h: Add __cold to netdev_<level> logging functions 2019-02-03 20:27:39 -08:00
init
ipc
kernel bpf: introduce BPF_F_LOCK flag 2019-02-01 20:55:39 +01:00
lib
LICENSES
mm
net net: Fix fall through warning in y2038 tstamp changes. 2019-02-03 20:25:31 -08:00
samples samples/bpf: Check the prog id before exiting 2019-02-01 23:37:51 +01:00
scripts
security
sound
tools tools/bpf: fix a selftest test_btf failure 2019-02-05 18:31:22 -08:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: add RISC-V BPF JIT maintainer 2019-02-05 16:56:10 +01:00
Makefile
README

README 

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.