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Filename Latest commit message Latest commit date
Edward Cree d893dc26e3 selftests/bpf: add a test for a bug in liveness-based pruning
Writes in straight-line code should not prevent reads from propagating
 along jumps.  With current verifier code, the jump from 3 to 5 does not
 add a read mark on 3:R0 (because 5:R0 has a write mark), meaning that
 the jump from 1 to 3 gets pruned as safe even though R0 is NOT_INIT.

Verifier output:
0: (61) r2 = *(u32 *)(r1 +0)
1: (35) if r2 >= 0x0 goto pc+1
 R1=ctx(id=0,off=0,imm=0) R2=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R10=fp0
2: (b7) r0 = 0
3: (35) if r2 >= 0x0 goto pc+1
 R0=inv0 R1=ctx(id=0,off=0,imm=0) R2=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R10=fp0
4: (b7) r0 = 0
5: (95) exit

from 3 to 5: safe

from 1 to 3: safe
processed 8 insns, stack depth 0

Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 22:38:07 -07:00
arch MIPS,bpf: fix missing break in switch statement 2017-08-22 16:18:00 -07:00
block blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL 2017-08-18 08:08:14 -06:00
certs modsign: add markers to endif-statements in certs/Makefile 2017-07-14 11:01:37 +10:00
crypto crypto: authencesn - Fix digest_null crash 2017-07-18 17:01:11 +08:00
Documentation Documentation/bindings: net: marvell-pp2: add the system controller 2017-08-22 14:32:19 -07:00
drivers net: hinic: make functions set_ctrl0 and set_ctrl1 static 2017-08-23 22:20:28 -07:00
firmware
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 17:06:42 -07:00
include net: sched: add couple of goto_chain helpers 2017-08-23 20:44:32 -07:00
init
ipc ipc: add missing container_of()s for randstruct 2017-08-02 17:16:12 -07:00
kernel bpf: minor cleanups for dev_map 2017-08-22 21:26:29 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 17:06:42 -07:00
mm Sanitize 'move_pages()' permission checks 2017-08-20 13:26:27 -07:00
net gre: remove duplicated assignment of iph 2017-08-23 22:36:03 -07:00
samples bpf: Allow numa selection in INNER_LRU_HASH_PREALLOC test of map_perf_test 2017-08-19 21:35:43 -07:00
scripts parse-maintainers: Move matching sections from MAINTAINERS 2017-08-08 11:16:14 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
sound ALSA: emu10k1: Fix forgotten user-copy conversion in init code 2017-08-18 10:59:02 +02:00
tools selftests/bpf: add a test for a bug in liveness-based pruning 2017-08-23 22:38:07 -07:00
usr
virt KVM/ARM Fixes for v4.13-rc4 2017-08-03 17:59:58 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS net-next/hinic: Add Maintainer 2017-08-22 10:48:54 -07:00
Makefile Linux 4.13-rc6 2017-08-20 14:13:52 -07:00
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.