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Felix Fietkau 3848e6a246 kernel: crashlog: Avoid out-of-bounds write 
vsnprintf returns the number of chars that would have been written, not
the actual number of chars written. This can lead to crashlog_buf->len
being too big which in turn can lead to get_maxlen() returning negative
numbers. The length argument of kmsg_dump_get_buffer will be casted to
a size_t which makes a negative input a big positive number allowing
kmsg_dump_get_buffer to write out of bounds.

Fix this by using vscnprintf which returns the actually written number
of chars.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>

SVN-Revision: 37820
2013-08-21 20:59:25 +00:00
docs docs: update remaining references to functions.sh 2012-12-20 15:29:33 +00:00
include include: introduce subtarget_platform CONFIG_TARGET 2013-08-21 00:36:52 +00:00
package crypto: add missing depends for crypto-manager 2013-08-21 00:36:19 +00:00
scripts build: process transitive dependencies after local dependencies 2013-08-04 12:17:26 +00:00
target kernel: crashlog: Avoid out-of-bounds write 2013-08-21 20:59:25 +00:00
toolchain build: decouple the mips16 support flag from the toolchain 2013-08-14 13:02:29 +00:00
tools upx: upgrade to 3.09 2013-08-19 01:22:29 +00:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore .gitignore: Ignore Emacs editor generated files 2011-10-31 09:37:59 +00:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
feeds.conf.default feeds.conf.default: switch packages feed to git (#13818) 2013-07-05 02:04:40 +00:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: it is no longer necessary to call make target/linux/clean as part of make clean 2012-12-02 15:26:28 +00:00
README build: BSD compile fixes 2013-03-07 17:32:29 +00:00
rules.mk build: decouple the mips16 support flag from the toolchain 2013-08-14 13:02:29 +00:00

README 

This is the buildsystem for the OpenWrt Linux distribution.

Please use "make menuconfig" to configure your appreciated
configuration for the toolchain and firmware.

You need to have installed gcc, binutils, bzip2, flex, python, perl
make, find, grep, diff, unzip, gawk, getopt, libz-dev and libc headers.

Run "./scripts/feeds update -a" to get all the latest package definitions
defined in feeds.conf / feeds.conf.default respectively
and "./scripts/feeds install -a" to install symlinks of all of them into
package/feeds/.

Use "make menuconfig" to configure your image.

Simply running "make" will build your firmware.
It will download all sources, build the cross-compile toolchain, 
the kernel and all choosen applications.

You can use "scripts/flashing/flash.sh" for remotely updating your embedded
system via tftp.

The OpenWrt system is documented in docs/. You will need a LaTeX distribution
and the tex4ht package to build the documentation. Type "make -C docs/" to build it.

To build your own firmware you need to have access to a Linux, BSD or MacOSX system
(case-sensitive filesystem required). Cygwin will not be supported because of
the lack of case sensitiveness in the file system.


Sunshine!
	Your OpenWrt Project
	http://openwrt.org