freebsd kernel with SKQ
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Mark Johnston 25f4ddfb2b sbappendcontrol() needs to avoid clearing M_NOTREADY on data mbufs.
If LOCAL_CREDS is set on a unix socket and sendfile() is called,
sendfile will call uipc_send(PRUS_NOTREADY), prepending a control
message to the M_NOTREADY mbufs.  uipc_send() then calls
sbappendcontrol() instead of sbappend(), and sbappendcontrol() would
erroneously clear M_NOTREADY.

Pass send flags to sbappendcontrol(), like we do for sbappend(), to
preserve M_READY when necessary.

Reported by:	syzkaller
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24333
2020-04-10 20:42:11 +00:00
bin Bump WARNS for sh(1). 2020-04-01 15:12:51 +00:00
cddl zfs: fix -fno-common issues 2020-03-28 17:00:38 +00:00
contrib ntpd: fix build with -fno-common 2020-04-06 23:11:43 +00:00
crypto Merge OpenSSL 1.1.1f. 2020-03-31 15:47:55 +00:00
etc Always install backward compatibility timezones, as they are installed 2020-04-09 05:11:18 +00:00
gnu userland build: replace -fno-common with ${CFCOMMONFLAG} 2020-04-10 14:01:07 +00:00
include Clean up global variable declarations in the dump and restore 2020-04-04 00:56:56 +00:00
kerberos5 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
lib Add HISTORY section to getc(3) 2020-04-10 09:37:20 +00:00
libexec yp*: fix -fno-common build 2020-04-06 23:16:05 +00:00
release pkgbase: remove more profile package leftovers 2020-04-01 16:03:06 +00:00
rescue rescue: Remove useless linking with libl 2020-03-24 07:08:02 +00:00
sbin Add a basic test for nvmecontrol 2020-04-07 20:26:42 +00:00
secure Merge OpenSSL 1.1.1f. 2020-03-31 15:47:55 +00:00
share userland build: replace -fno-common with ${CFCOMMONFLAG} 2020-04-10 14:01:07 +00:00
stand Add support to MSDOS FS in PPC loader 2020-04-07 19:46:00 +00:00
sys sbappendcontrol() needs to avoid clearing M_NOTREADY on data mbufs. 2020-04-10 20:42:11 +00:00
targets retire in-tree GPL dtc devicetree compiler 2020-02-29 17:10:54 +00:00
tests kqueue tests: fix -fno-common build 2020-04-06 23:08:07 +00:00
tools llvm: add a build knob for enabling assertions 2020-04-06 01:27:17 +00:00
usr.bin logger: temporarily disable Capsicum when a host is provided 2020-04-08 18:43:00 +00:00
usr.sbin In the past changes have been made to smbios->minor without updating the 2020-04-07 23:17:44 +00:00
.arcconfig
.arclint
.cirrus.yml Cirrus-CI: increase timeout to 120m 2020-02-19 15:56:40 +00:00
.clang-format
.gitattributes
.gitignore .gitignore: Add LINT kernel configurations generated into SRCDIR 2019-08-10 18:22:22 +00:00
COPYRIGHT Happy New Year 2020! 2019-12-31 16:01:36 +00:00
LOCKS
MAINTAINERS Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
Makefile Add powerpcspe to the EXTRA_TARGETS 2020-03-31 22:41:57 +00:00
Makefile.inc1 Normalize deployment tools usage and definitions by putting into one place 2020-04-07 02:46:22 +00:00
Makefile.libcompat Stop building libl and liby 2020-03-26 08:23:09 +00:00
Makefile.sys.inc
ObsoleteFiles.inc Retire procfs-based process debugging. 2020-04-01 19:22:09 +00:00
README Import OpenSSL 1.1.1f. 2020-03-31 15:25:23 +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