linux/scripts
Paul Lawrence 342061ee4e kasan: support alloca() poisoning
clang's AddressSanitizer implementation adds redzones on either side of
alloca()ed buffers.  These redzones are 32-byte aligned and at least 32
bytes long.

__asan_alloca_poison() is passed the size and address of the allocated
buffer, *excluding* the redzones on either side.  The left redzone will
always be to the immediate left of this buffer; but AddressSanitizer may
need to add padding between the end of the buffer and the right redzone.
If there are any 8-byte chunks inside this padding, we should poison
those too.

__asan_allocas_unpoison() is just passed the top and bottom of the dynamic
stack area, so unpoisoning is simpler.

Link: http://lkml.kernel.org/r/20171204191735.132544-4-paullawrence@google.com
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-06 18:32:42 -08:00
..
basic fixdep: use existing helper to check modular CONFIG options 2018-01-18 09:37:39 +09:00
coccinelle Coccinelle: memdup: drop spurious line 2018-01-29 23:06:39 +09:00
dtc
gcc-plugins
gdb scripts/gdb/linux/tasks.py: fix get_thread_info 2018-01-19 10:09:41 -08:00
genksyms genksyms: drop *.hash.c from .gitignore 2018-01-13 21:50:13 +09:00
kconfig Kconfig updates for v4.16 2018-02-01 11:45:49 -08:00
ksymoops
mod Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
package kbuild: pkg: make out-of-tree rpm/deb-pkg build immediately fail 2017-12-13 00:07:00 +09:00
selinux Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
tracing
.gitignore
adjust_autoksyms.sh
asn1_compiler.c
bloat-o-meter scripts/bloat-o-meter: don't fail with division by 0 2017-11-29 18:40:43 -08:00
bootgraph.pl
check_00index.sh
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk 2018-02-01 13:36:15 -08:00
checkstack.pl
checksyscalls.sh
checkversion.pl
cleanfile
cleanpatch
coccicheck Coccinelle: coccicheck: fix typo 2018-02-02 00:21:47 +09:00
config
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh
decodecode scripts/decodecode: make it take multiline Code line 2018-01-31 17:18:34 -08:00
depmod.sh
diffconfig
documentation-file-ref-check
export_report.pl
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux
extract_xc3028.pl
faddr2line scripts/faddr2line: fix CROSS_COMPILE unset error 2017-12-14 16:00:48 -08:00
find-unused-docs.sh
gcc-goto.sh
gcc-ld
gcc-plugin.sh
gcc-version.sh
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen_initramfs_list.sh
get_dvb_firmware
get_maintainer.pl get_maintainer: add more --self-test options 2017-11-17 16:10:01 -08:00
gfp-translate
headerdep.pl
headers.sh
headers_check.pl
headers_install.sh
insert-sys-cert.c
kallsyms.c
Kbuild.include
kernel-doc scripts: kernel_doc: better handle show warnings logic 2018-01-01 12:49:07 -07:00
ld-version.sh
leaking_addresses.pl
Lindent
link-vmlinux.sh Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile
Makefile.asm-generic Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile.build Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-01-17 11:54:56 -08:00
Makefile.clean
Makefile.dtbinst
Makefile.extrawarn Kbuild: suppress packed-not-aligned warning for default setting only 2018-01-18 09:37:53 +09:00
Makefile.gcc-plugins
Makefile.headersinst Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile.host Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile.kasan kasan: support alloca() poisoning 2018-02-06 18:32:42 -08:00
Makefile.kcov Makefile: support flag -fsanitizer-coverage=trace-cmp 2017-11-17 16:10:04 -08:00
Makefile.lib kasan: don't emit builtin calls when sanitization is off 2018-02-06 18:32:42 -08:00
Makefile.modbuiltin
Makefile.modinst
Makefile.modpost Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile.modsign
Makefile.ubsan
makelst
markup_oops.pl
mkcompile_h Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
mkmakefile
mksysmap
mkuboot.sh
module-common.lds
namespace.pl
objdiff
parse-maintainers.pl parse-maintainers: add ability to specify filenames 2017-11-17 16:10:01 -08:00
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c
recordmcount.h
recordmcount.pl
setlocalversion
show_delta
sign-file.c
sortextable.c
sortextable.h
spelling.txt spelling.txt: add "unnecessary" typo variants 2017-11-17 16:10:00 -08:00
sphinx-pre-install
stackdelta
stackusage
tags.sh scripts/tags.sh: change find_other_sources() for include directories 2018-01-31 17:18:34 -08:00
unifdef.c
ver_linux
xen-hypercalls.sh
xz_wrap.sh