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Mark Johnston a7a7c306bf md: Fix a read-after-free in BIO_GETATTR handling
g_handleattr_int() consumes the bio if the attribute matches, so when we
check bp->bio_cmd bp may have been freed.

Move GETATTR handling to a separate function to avoid the problem.  We
do not need to set bio_completed for such bios, g_handleattr_int() will
handle it.  Also remove the setting of bio_resid before the
devstat_end_transaction_bio() call.  All of the md(4) bio handlers set
bio_resid already.

Reported by:	KASAN
Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D27724
2020-12-23 11:16:40 -05:00
.github/workflows GH Actions: Use pre-installed clang packages 2020-11-26 14:42:16 +00:00
bin Remove unused includes. 2020-12-22 21:04:36 -08:00
cddl dtrace: honor LC_NUMERIC for %'d and alike, and LC_TIME for %T 2020-12-03 11:59:40 +00:00
contrib Fix abort in jemalloc extent coalescing. 2020-12-18 10:09:21 +00:00
crypto Merge OpenSSL 1.1.1i. 2020-12-09 02:05:14 +00:00
etc Missed adding netgraph to mtree in r368443: 2020-12-08 17:44:34 +00:00
gnu Remove additional GDB leftovers missed in r368667 2020-12-15 18:12:03 +00:00
include Change POSIX compliance level for visibility of strerror_l(3). 2020-12-17 17:08:25 +00:00
kerberos5 Fix more -Wundef warnings during bootstrap 2020-10-14 12:28:54 +00:00
lib libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
libexec rtld-elf: link udivmoddi4 from compiler_rt 2020-12-19 08:38:31 +00:00
release riscv: increase GENERICSD gap 2020-12-16 20:21:56 +00:00
rescue ping: add a ping6 hard link for backwards compatibility 2020-11-26 18:33:04 +00:00
sbin ipfw(8): Fix a few mandoc related issues 2020-12-19 12:47:40 +00:00
secure caroot: update bundle 2020-12-11 18:14:43 +00:00
share Filter TCP connections to SO_REUSEPORT_LB listen sockets by NUMA domain 2020-12-19 22:04:46 +00:00
stand lualoader: fix lua-lint run 2020-12-17 18:29:30 +00:00
sys md: Fix a read-after-free in BIO_GETATTR handling 2020-12-23 11:16:40 -05:00
targets Add WITH_CLANG_FORMAT option 2020-06-24 17:03:42 +00:00
tests pf tests: Verify (tcp) checksum modification on unaligned options 2020-12-23 12:03:20 +01:00
tools make the git commit message template more compact 2020-12-23 08:58:17 -05:00
usr.bin patch(1): Fix a few mandoc related issues 2020-12-19 13:00:17 +00:00
usr.sbin trim(8): Fix a few issues reported by mandoc 2020-12-19 13:56:19 +00:00
.arcconfig arcconfig: add callsign again 2020-11-23 04:39:29 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml CI: switch to qemu42 package 2020-10-29 02:02:30 +00:00
.clang-format clang-format: Avoid breaking after the opening paren of function definitions 2020-10-28 11:54:00 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore Stop ignoring makeLINT generated files 2020-10-09 00:27:45 +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 Add a pointer to csprng@ for the CSPRNG driver. This is enforced anyway by 2020-09-01 08:02:12 +00:00
Makefile Makefile: re-wordsmith the blurb about xtoolchain ports 2020-11-14 18:06:35 +00:00
Makefile.inc1 Remove additional GDB leftovers missed in r368667 2020-12-15 18:12:03 +00:00
Makefile.libcompat Race in 32-bit fixed 2020-10-08 17:30:05 +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 Retire obsolete GDB 6.1.1 2020-12-15 17:44:19 +00:00
README Mark the repository has been converted to Git 2020-12-23 12:27:27 +08:00
README.md Mark the repository has been converted to Git 2020-12-23 12:27:27 +08:00
RELNOTES Add relnote for r368667, GDB 6.1.1 removal 2020-12-15 17:52:04 +00:00
UPDATING /etc/services: attempt to bring the database to this century 2/2. 2020-12-17 02:54:32 +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.

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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.

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cddl		Various commands and libraries under the Common Development
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contrib		Packages contributed by 3rd parties.

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include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

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share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

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