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Kyle Evans 58366f05c0 shmfd/mmap: restrict maxprot with MAP_SHARED + F_SEAL_WRITE
If a write seal is set on a shared mapping, we must exclude VM_PROT_WRITE as
the fd is effectively read-only. This was discovered by running
devel/linux-ltp, which mmap's with acceptable protections specified then
attempts to raise to PROT_READ|PROT_WRITE with mprotect(2), which we
allowed.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D22978
2020-01-05 03:15:16 +00:00
bin sh: Fix rare memory leak with SIGINT 2020-01-01 12:06:37 +00:00
cddl vfs: add a file missed in r356337 2020-01-03 22:47:31 +00:00
contrib MFV r356365: 2020-01-05 01:42:21 +00:00
crypto sshd: make getpwclass wrapper MON_ISAUTH not MON_AUTH 2019-11-20 16:30:37 +00:00
etc Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 2019-12-22 11:50:44 +00:00
gnu Provide libssp based on libc 2020-01-04 20:19:25 +00:00
include Revert r355760, r355759 2019-12-15 17:33:26 +00:00
kerberos5 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
lib libssp: fix FORTIFY_SOURCE stub declarations 2020-01-04 22:05:00 +00:00
libexec Fix AT_EXECPATH for direct exec mode. 2020-01-02 22:48:08 +00:00
release release: chase ports r519089 (rpi-firmware update) 2019-12-05 16:17:56 +00:00
rescue Remove unused defines since r147075 2019-07-12 04:44:50 +00:00
sbin Reduce memory footprint of fsck_msdosfs. 2020-01-03 00:31:48 +00:00
secure Update Makefile.depend files 2019-12-11 17:37:53 +00:00
share arch.7: update to show mips* and sparc64 use external GCC after r356367 2020-01-05 03:07:59 +00:00
stand Move stand/ofw/libofw to stand/libofw. 2020-01-02 04:34:22 +00:00
sys shmfd/mmap: restrict maxprot with MAP_SHARED + F_SEAL_WRITE 2020-01-05 03:15:16 +00:00
targets Update dirdeps.mk and gendirdeps.mk 2019-12-11 17:38:15 +00:00
tests lio_listio_empty_nowait_thread sometimes does *not* hang. 2020-01-04 18:59:46 +00:00
tools Adjust WITH_/WITHOUT_ descriptions for GCC options after r356367 2020-01-05 03:00:26 +00:00
usr.bin Update the man page to reflect that "-M" and "-N" are deprecated and ignored. 2019-12-31 22:25:06 +00:00
usr.sbin inetd: fix WITHOUT_TCP_WRAPPERS build after r356248 2020-01-03 15:29:32 +00:00
.arcconfig
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Update vendor/libarchive/dist to git 5e270715b51d199467195b56f77e21cb8bb1d642 2020-01-05 01:30:41 +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 Update vendor/libarchive/dist to git 5e270715b51d199467195b56f77e21cb8bb1d642 2020-01-05 01:30:41 +00:00
COPYRIGHT Happy New Year 2020! 2019-12-31 16:01:36 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
Makefile Use the freebsd-gcc6 toolchains instead of powerpc64-xtoolchain-gcc. 2020-01-04 00:59:47 +00:00
Makefile.inc1 Provide libssp based on libc 2020-01-04 20:19:25 +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 AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Provide libssp based on libc 2020-01-04 20:19:25 +00:00
README README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
RELNOTES Add an entry to RELNOTES for r355677. 2019-12-13 16:28:48 +00:00
UPDATING Do not build GCC 4.2.1 by default for any CPU architecture 2020-01-05 02:47:56 +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