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Filename Latest commit message Latest commit date
Yonghong Song 69a0f9ecef bpf, bpftool: fix a few ubsan warnings
The issue is reported at https://github.com/libbpf/libbpf/issues/28.

Basically, per C standard, for
  void *memcpy(void *dest, const void *src, size_t n)
if "dest" or "src" is NULL, regardless of whether "n" is 0 or not,
the result of memcpy is undefined. clang ubsan reported three such
instances in bpf.c with the following pattern:
  memcpy(dest, 0, 0).

Although in practice, no known compiler will cause issues when
copy size is 0. Let us still fix the issue to silence ubsan
warnings.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-04-10 09:46:51 +02:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 12:22:57 -07:00
block io_uring-20190323 2019-03-23 10:25:12 -07:00
certs
crypto
Documentation bpf: add specification for BTF Var and DataSec kinds 2019-04-09 17:05:46 -07:00
drivers Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 17:37:58 -07:00
fs NFS client bugfixes for Linux 5.1 2019-03-26 14:25:48 -07:00
include bpf: allow for key-less BTF in array map 2019-04-09 17:05:46 -07:00
init
ipc
kernel bpf: allow for key-less BTF in array map 2019-04-09 17:05:46 -07:00
lib kbuild: add ability to generate BTF type info for vmlinux 2019-04-03 00:53:07 +02:00
LICENSES
mm device-dax for 5.1 2019-03-16 13:05:32 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 17:37:58 -07:00
samples samples/bpf: fix build with new clang 2019-04-05 16:28:36 +02:00
scripts kbuild: add ability to generate BTF type info for vmlinux 2019-04-03 00:53:07 +02:00
security selinux: fix NULL dereference in policydb_destroy() 2019-03-18 12:19:48 -04:00
sound sound fixes for 5.1-rc2 2019-03-22 14:04:38 -07:00
tools bpf, bpftool: fix a few ubsan warnings 2019-04-10 09:46:51 +02:00
usr
virt ARM: some cleanups, direct physical timer assignment, cache sanitization 2019-03-15 15:00:28 -07:00
.clang-format rhashtable: rename rht_for_each*continue as *from. 2019-03-21 14:01:10 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS io_uring-20190323 2019-03-23 10:25:12 -07:00
Makefile kbuild: add ability to generate BTF type info for vmlinux 2019-04-03 00:53:07 +02:00
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.