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Bjoern A. Zeeb 1b786d0191 kern_jail: missing \0 termination check on osrelease parameter
If a user spplies a non-\0 terminated osrelease parameter reading it back
may disclose kernel memory.
This is a problem in case of nested jails (children.max > 0, which is not
the default).  Otherwise root outside the jail has access to kernel memory
by other means and root inside a jail cannot create a child jail.

Add the proper \0 check at the end of a supplied osrelease parameter and
make sure any copies of the field will be \0-terminated.

Submitted by:	Hans Christian Woithe (chwoithe yahoo.com)
MFC after:	3 days
2020-03-14 14:04:55 +00:00
bin sh: fix read builtin on 32-bit systems 2020-02-22 03:14:05 +00:00
cddl Do not load dtraceall.ko if dtrace.ko is already loaded. 2020-02-28 17:05:27 +00:00
contrib Merge ^/head r358731 through r358831. 2020-03-10 07:04:05 +00:00
crypto Add a note about deleted files in OpenSSH upgrade instructions 2020-02-25 22:15:25 +00:00
etc Merge ^/head r358466 through r358677. 2020-03-05 17:55:36 +00:00
gnu retire in-tree GPL dtc devicetree compiler 2020-02-29 17:10:54 +00:00
include Import ntp-4.2.8p14. 2020-03-04 13:59:29 +00:00
kerberos5 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
lib sendfile() does currently not support SCTP sockets. 2020-03-13 18:38:28 +00:00
libexec flua: implement chmod 2020-03-13 15:40:35 +00:00
release retire amd(8) 2020-03-09 20:46:43 +00:00
rescue Remove unused defines since r147075 2019-07-12 04:44:50 +00:00
sbin Revert r358858 as it breaks some ipfw(8) setups. 2020-03-11 08:08:53 +00:00
secure pkgbase: fix caroot packaging and add post-install script 2020-01-29 18:47:08 +00:00
share CMSG_DATA.3: Fix formatting of printf escape sequences 2020-03-13 11:07:48 +00:00
stand loader: add comconsole implementation on top of SIO protocol 2020-03-14 06:36:03 +00:00
sys kern_jail: missing \0 termination check on osrelease parameter 2020-03-14 14:04:55 +00:00
targets retire in-tree GPL dtc devicetree compiler 2020-02-29 17:10:54 +00:00
tests Skip sys.netpfil.pf.nat.exhaust on all platforms as it not only fails on amd64 2020-03-13 16:44:48 +00:00
tools Remove /usr/share/snmp/defs/tc.def with delete-old if MK_BSNMP == no 2020-03-12 16:06:26 +00:00
usr.bin Remove unneeded checks for prelen. 2020-03-14 05:57:22 +00:00
usr.sbin libpmcstat: Try /boot/modules if module not found 2020-03-12 23:04:40 +00:00
.arcconfig
.arclint
.cirrus.yml Update vendor/libarchive/dist to git 85b9f665b6a2d4397fdd38992152d011265e374b 2020-03-02 02:12:53 +00:00
.clang-format Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore .gitignore: Add LINT kernel configurations generated into SRCDIR 2019-08-10 18:22:22 +00:00
COPYRIGHT Import ntp-4.2.8p14. 2020-03-04 13:59:29 +00:00
LOCKS
MAINTAINERS Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
Makefile Per the firm plan, start to remove sparc64 2020-02-02 11:37:27 +00:00
Makefile.inc1 Makefile.inc1: move dependency hack comment to the block it applies to 2020-03-12 14:01:17 +00:00
Makefile.libcompat libcompat: build 32-bit rtld and ldd as part of "everything" 2019-11-07 22:58:10 +00:00
Makefile.sys.inc
ObsoleteFiles.inc Set tentative dates. 2020-03-10 07:05:04 +00:00
README import ncurses 6.2-20200215 2020-02-19 16:58:06 +00:00
README.md
RELNOTES Add elf2aout removal 2020-02-06 18:00:50 +00:00
UPDATING Set tentative dates. 2020-03-10 07:05:04 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

Source Roadmap:

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html