No description
  • C 98.2%
  • Assembly 1%
  • Makefile 0.3%
  • Shell 0.2%
  • Python 0.1%
Find a file
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Daniel Borkmann e94fa1d931 bpf, xskmap: fix crash in xsk_map_alloc error path handling
If bpf_map_precharge_memlock() did not fail, then we set err to zero.
However, any subsequent failure from either alloc_percpu() or the
bpf_map_area_alloc() will return ERR_PTR(0) which in find_and_alloc_map()
will cause NULL pointer deref.

In devmap we have the convention that we return -EINVAL on page count
overflow, so keep the same logic here and just set err to -ENOMEM
after successful bpf_map_precharge_memlock().

Fixes: fbfc504a24 ("bpf: introduce new bpf AF_XDP map type BPF_MAP_TYPE_XSKMAP")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Björn Töpel <bjorn.topel@intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-05-04 14:55:54 -07:00
arch bpf, x32: remove ld_abs/ld_ind 2018-05-03 16:49:20 -07:00
block
certs
crypto Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
Documentation samples/bpf: sample application and documentation for AF_XDP sockets 2018-05-03 15:55:25 -07:00
drivers nfp: bpf: rewrite map pointers with NFP TIDs 2018-05-04 23:41:03 +02:00
firmware
fs various SMB3/CIFS fixes for stable 4.17-rc1 2018-04-22 12:13:04 -07:00
include bpf: offload: allow offloaded programs to use perf event arrays 2018-05-04 23:41:03 +02:00
init Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-15 16:12:35 -07:00
ipc ipc/shm: fix use-after-free of shm file via remap_file_pages() 2018-04-13 17:10:27 -07:00
kernel bpf, xskmap: fix crash in xsk_map_alloc error path handling 2018-05-04 14:55:54 -07:00
lib bpf: migrate ebpf ld_abs/ld_ind tests to test_verifier 2018-05-03 16:49:19 -07:00
LICENSES
mm mm/filemap.c: fix NULL pointer in page_cache_tree_insert() 2018-04-20 17:18:36 -07:00
net bpf: add skb_load_bytes_relative helper 2018-05-03 16:49:19 -07:00
samples samples/bpf: sample application and documentation for AF_XDP sockets 2018-05-03 15:55:25 -07:00
scripts bpf: relax constraints on formatting for eBPF helper documentation 2018-05-02 17:46:50 +02:00
security net: initial AF_XDP skeleton 2018-05-03 15:55:23 -07:00
sound sound fixes for 4.17-rc2 2018-04-21 10:32:16 -07:00
tools tools: bpftool: add simple perf event output reader 2018-05-04 23:41:04 +02:00
usr
virt
.clang-format clang-format: add configuration file 2018-04-11 10:28:35 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS net: initial AF_XDP skeleton 2018-05-03 15:55:23 -07:00
Makefile Linux 4.17-rc2 2018-04-22 19:20:09 -07:00
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.
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.