HardenedBSD src tree
Go to file
Olivier Certner 28391f188c
kern_malloc: Restore working KASAN runtime after free() and zfree() folding
In the zfree() case, the explicit_bzero() calls zero all the allocation,
including the redzone which malloc() has marked as invalid.  So calling
kasan_mark() before those is in fact necessary.

This fixes a crash at boot when 'ldconfig' is run and tries to get
random bytes through getrandom() (relevant part of the stack is
read_random_uio() -> zfree() -> explicit_bzero()) for kernels with KASAN
compiled in.

Approved by:    markj (mentor)
Fixes:		4fab5f0054 ("kern_malloc: fold free and zfree together into one __always_inline func")
MFC after:      10 days
MFC with:       4fab5f0054
Sponsored by:   The FreeBSD Foundation
2024-08-01 22:35:14 +02:00
.cirrus-ci
.github CODEOWNERS: Add nuageinit 2024-07-25 11:15:29 +02:00
bin test(1): quote closing bracket in error message 2024-07-29 14:08:33 -06:00
cddl zdb: Chase a missing library dependency 2024-07-18 09:57:38 -04:00
contrib Merge commit c80c09f3e380 from llvm-project (by Dimitry Andric): 2024-07-28 13:13:37 +02:00
crypto Fix enum warning in heimdal 2024-07-30 21:24:17 +02:00
etc ObsoleteFiles.inc: Remove usr/share/examples/IPv6 2024-07-31 15:25:55 -04:00
gnu Remove residual blank line at start of Makefile 2024-07-15 16:43:39 -06:00
include include: ssp: hide ppoll redirect behind __BSD_VISIBLE 2024-07-30 11:36:58 -05:00
kerberos5 Remove residual blank line at start of Makefile 2024-07-15 16:43:39 -06:00
lib Remove "All Rights Reserved" from FreeBSD Foundation copyrights 2024-07-30 12:16:36 -04:00
libexec Remove "All Rights Reserved" from FreeBSD Foundation copyrights 2024-07-30 12:16:36 -04:00
release release.sh: Pass ARCH_FLAGS when setting VMSIZE 2024-07-06 10:18:03 -07:00
rescue Remove residual blank line at start of Makefile 2024-07-15 16:43:39 -06:00
sbin Remove "All Rights Reserved" from FreeBSD Foundation copyrights 2024-07-30 12:16:36 -04:00
secure Remove residual blank line at start of Makefile 2024-07-15 16:43:39 -06:00
share filemon: Document how to build into the kernel. 2024-07-30 21:04:30 +02:00
stand stand: Use correct loader needs to be updated code 2024-07-29 20:26:11 -06:00
sys kern_malloc: Restore working KASAN runtime after free() and zfree() folding 2024-08-01 22:35:14 +02:00
targets mergemaster: remove from the tree 2024-07-16 08:25:54 -04:00
tests Remove "All Rights Reserved" from FreeBSD Foundation copyrights 2024-07-30 12:16:36 -04:00
tools Remove "All Rights Reserved" from FreeBSD Foundation copyrights 2024-07-30 12:16:36 -04:00
usr.bin Remove "All Rights Reserved" from FreeBSD Foundation copyrights 2024-07-30 12:16:36 -04:00
usr.sbin bhyve: Assert success in a couple of libvmmapi calls 2024-07-31 22:41:30 +00:00
.arcconfig arcanist: use FreeBSD/git project repository instead of FreeBSD/svn 2022-08-23 14:16:41 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Cirrus-CI: switch to llvm18 by default 2024-04-07 17:23:25 -04:00
.clang-format clang-format: Minor tweaks 2024-04-30 17:33:43 -04:00
.git-blame-ignore-revs Add another commit to .git-blame-ignore-revs 2024-03-15 23:11:52 +00:00
.gitattributes Remove SVN related Git attributes 2023-12-26 10:28:28 -07:00
.gitignore .gitignore: add sys/*/compile 2024-02-02 09:20:36 -07:00
.mailmap mailmap: Translate my personal address 2024-06-22 08:57:56 +02:00
CONTRIBUTING.md CONTRIBUTING.md/style: spring cleaning 2024-05-10 15:07:03 -06:00
COPYRIGHT copyright: Bump the copyright date. 2023-12-31 23:15:43 -07:00
LOCKS Update LOCKS for Git 2023-12-26 10:28:25 -07:00
MAINTAINERS man filesystems: fix more xrefs after move to s4 2024-06-27 18:32:05 -06:00
Makefile armv6: Remove support for building armv6 2024-07-12 11:31:53 +00:00
Makefile.inc1 Revert "Makefile.inc1: show time for `make installworld'" 2024-07-15 09:50:04 -04:00
Makefile.libcompat Remove residual blank line at start of Makefile 2024-07-15 16:43:39 -06:00
Makefile.sys.inc Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
ObsoleteFiles.inc ObsoleteFiles.inc: Don't remove recently added mixer(8) tests 2024-07-31 15:26:00 -04:00
README.md ota: Import 9f971fba471b from bsd-feature for 20240623 2024-07-23 15:11:33 -06:00
RELNOTES RELNOTES: mention moving filesystems to section 4 2024-06-27 18:37:20 -06:00
UPDATING Do not clean (in buildworld/buildkernel) by default 2024-07-29 13:16:52 -04:00

FreeBSD Source:

This is the top level of the FreeBSD source directory.

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), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.

For information on the CPU architectures and platforms supported by FreeBSD, see the FreeBSD website's Platforms page.

For official FreeBSD bootable images, see the release page.

Source Roadmap:

Directory Description
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 Commands and libraries under the GNU General Public License (GPL) or Lesser General Public License (LGPL). Please see gnu/COPYING and gnu/COPYING.LIB 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 (see sys/README.md).
targets Support for experimental DIRDEPS_BUILD
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 FreeBSD Handbook.