Borislav Petkov d72e720a19 scripts/decodecode: add the capability to supply the program counter ... So that comparing with objdump output from vmlinux can ease pinpointing where the trapping instruction actually is. An example is better than a thousand words: $ PC=0xffffffff8329a927 ./scripts/decodecode < ~/tmp/syz/gfs2.splat [ 477.379104][T23917] Code: 48 83 ec 28 48 89 3c 24 48 89 54 24 08 e8 c1 b4 4a fe 48 8d bb 00 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 97 05 00 00 48 8b 9b 00 01 00 00 48 85 db 0f 84 All code ======== ffffffff8329a8fd: 48 83 ec 28 sub $0x28,%rsp ffffffff8329a901: 48 89 3c 24 mov %rdi,(%rsp) ffffffff8329a905: 48 89 54 24 08 mov %rdx,0x8(%rsp) ffffffff8329a90a: e8 c1 b4 4a fe callq 0xffffffff81745dd0 ffffffff8329a90f: 48 8d bb 00 01 00 00 lea 0x100(%rbx),%rdi ffffffff8329a916: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax ffffffff8329a91d: fc ff df ffffffff8329a920: 48 89 fa mov %rdi,%rdx ffffffff8329a923: 48 c1 ea 03 shr $0x3,%rdx ffffffff8329a927:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction ffffffff8329a92b: 0f 85 97 05 00 00 jne 0xffffffff8329aec8 ffffffff8329a931: 48 8b 9b 00 01 00 00 mov 0x100(%rbx),%rbx ffffffff8329a938: 48 85 db test %rbx,%rbx ffffffff8329a93b: 0f .byte 0xf ffffffff8329a93c: 84 .byte 0x84 Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Marc Zyngier <maz@misterjones.org> Cc: Will Deacon <will@kernel.org> Cc: Rabin Vincent <rabin@rab.in> Link: https://lkml.kernel.org/r/20200930111416.GF6810@zn.tnic Link: https://lkml.kernel.org/r/20200929113238.GC21110@zn.tnic Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-10-13 18:38:26 -07:00
..
atomic	Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core	2020-10-09 08:56:02 +02:00
basic	kbuild: introduce hostprogs-always-y and userprogs-always-y	2020-08-10 01:32:59 +09:00
coccinelle	scripts: device_attr_show.cocci: update location of sysfs doc	2020-09-10 10:47:52 -06:00
dtc	scripts/dtc: only append to HOST_EXTRACFLAGS instead of overwriting	2020-09-29 15:48:08 -05:00
dummy-tools	kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig	2020-04-09 00:13:45 +09:00
gcc-plugins	Kbuild updates for v5.9	2020-08-09 14:10:26 -07:00
gdb	scripts/gdb: fix python 3.8 SyntaxWarning	2020-08-12 10:58:02 -07:00
genksyms	genksyms: keywords: Use __restrict not _restrict	2020-08-18 20:16:46 +09:00
kconfig	kconfig: qconf: revive help message in the info view	2020-09-20 12:58:54 +09:00
ksymoops	Fix dead URLs to ftp.kernel.org	2017-03-28 16:16:52 +02:00
mod	Kbuild updates for v5.9	2020-08-09 14:10:26 -07:00
package	kbuild: Replace HTTP links with HTTPS ones	2020-08-10 01:32:59 +09:00
selinux	Kbuild updates for v5.9	2020-08-09 14:10:26 -07:00
tracing	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
adjust_autoksyms.sh	kbuild: split adjust_autoksyms.sh in two parts	2020-03-03 20:49:21 +09:00
asn1_compiler.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
bin2c.c	kbuild: move bin2c back to scripts/ from scripts/basic/	2018-07-18 01:18:05 +09:00
bloat-o-meter	scripts/bloat-o-meter: Support comparing library archives	2020-08-07 11:33:21 -07:00
bootgraph.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 391	2019-06-05 17:37:11 +02:00
bpf_helpers_doc.py	bpf: Introduce SK_LOOKUP program type with a dedicated attach point	2020-07-17 20:18:16 -07:00
cc-can-link.sh	bpfilter: check compiler capability in Kconfig	2018-06-28 13:36:39 +09:00
check_extable.sh	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
check-sysctl-docs	docs: add a script to check sysctl docs	2020-02-25 03:35:16 -07:00
checkincludes.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
checkkconfigsymbols.py	kconfig: remove '---help---' support	2020-08-14 13:30:03 +09:00
checkpatch.pl	checkpatch: fix the usage of capture group ( ... )	2020-09-05 12:14:29 -07:00
checkstack.pl	scripts/checkstack.pl: fix arm sp regex	2020-05-26 00:03:16 +09:00
checksyscalls.sh	checksyscalls: fix up mq_timedreceive and stat exceptions	2019-02-19 21:27:53 +01:00
checkversion.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
clang-version.sh	kbuild: update comment block of scripts/clang-version.sh	2019-03-04 22:34:54 +09:00
cleanfile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
cleanpatch	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
coccicheck	coccicheck: return proper error code on fail	2018-08-14 08:58:56 +09:00
config	scripts/config: allow colons in option strings for sed	2020-04-23 01:10:16 +09:00
const_structs.checkpatch	const_structs.checkpatch: add regulator_ops	2020-08-07 11:33:21 -07:00
decode_stacktrace.sh	scripts/decode_stacktrace.sh: guess path to vmlinux by release name	2020-08-07 11:33:21 -07:00
decodecode	scripts/decodecode: add the capability to supply the program counter	2020-10-13 18:38:26 -07:00
depmod.sh	kbuild: modules_install: warn when missing System.map file	2018-09-09 09:14:07 +09:00
diffconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
documentation-file-ref-check	scripts: documentation-file-ref-check: Add line break before exit	2020-04-15 15:13:13 -06:00
export_report.pl	modpost: move the namespace field in Module.symvers last	2020-03-17 08:59:03 +09:00
extract_xc3028.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 339	2019-06-05 17:37:07 +02:00
extract-cert.c	extract-cert: add static to local data	2020-08-18 20:16:46 +09:00
extract-ikconfig
extract-module-sig.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
extract-sys-certs.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
extract-vmlinux	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378	2019-06-05 17:37:10 +02:00
faddr2line	scripts/faddr2line: fix location of start_kernel in comment	2018-11-18 10:15:09 -08:00
file-size.sh	kbuild: Use ls(1) instead of stat(1) to obtain file size	2018-03-26 02:01:24 +09:00
find-unused-docs.sh	scripts/find-unused-docs: Fix massive false positives	2020-01-27 14:25:06 -07:00
gcc-goto.sh	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
gcc-ld	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
gcc-plugin.sh	gcc-plugins: drop support for GCC <= 4.7	2020-04-09 00:13:45 +09:00
gcc-version.sh	kbuild: clean up scripts/gcc-version.sh	2019-03-04 22:35:04 +09:00
gcc-x86_32-has-stack-protector.sh	stack-protector: test compiler capability in Kconfig and drop AUTO mode	2018-06-08 18:56:00 +09:00
gcc-x86_64-has-stack-protector.sh	stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y	2018-06-25 23:21:13 +09:00
gen_autoksyms.sh	kbuild: generate autoksyms.h early	2020-03-03 20:49:21 +09:00
gen_compile_commands.py	gen_compile_commands: lower the entry count threshold	2019-07-27 12:18:19 +09:00
gen_ksymdeps.sh	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
get_abi.pl	doc: ABI scripts: add a SPDX header file	2019-06-21 16:58:37 +02:00
get_dvb_firmware	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
get_maintainer.pl	get_maintainer: fix unexpected behavior for path/to//file (double slashes)	2020-06-04 19:06:24 -07:00
gfp-translate	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
headerdep.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
headers_check.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
headers_install.sh	Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-08-07 13:29:39 -07:00
insert-sys-cert.c
jobserver-exec	docs, parallelism: Rearrange how jobserver reservations are made	2019-11-22 10:35:18 -07:00
kallsyms.c	scripts/kallsyms: skip ppc compiler stub *.long_branch.* / *.plt_branch.*	2020-09-25 00:41:54 +09:00
Kbuild.include	kbuild: stop filtering out $(GCC_PLUGINS_CFLAGS) from cc-option base	2020-08-10 01:32:59 +09:00
Kconfig.include	kconfig: unify cc-option and as-option	2020-06-17 10:38:42 +09:00
kernel-doc	kernel-doc: add support for ____cacheline_aligned attribute	2020-09-16 12:27:28 -06:00
ld-version.sh	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
leaking_addresses.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
Lindent	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
link-vmlinux.sh	Kbuild updates for v5.9	2020-08-09 14:10:26 -07:00
Makefile	kbuild: introduce hostprogs-always-y and userprogs-always-y	2020-08-10 01:32:59 +09:00
Makefile.asm-generic	kbuild: force all architectures except um to include mandatory-y	2019-03-17 12:56:32 +09:00
Makefile.build	kbuild: sort hostprogs before passing it to ifneq	2020-08-10 01:32:59 +09:00
Makefile.clean	kbuild: introduce hostprogs-always-y and userprogs-always-y	2020-08-10 01:32:59 +09:00
Makefile.dtbinst	kbuild: refactor Makefile.dtbinst more	2020-03-25 10:19:43 +09:00
Makefile.extrawarn	Makefile.extrawarn: Move sign-compare from W=2 to W=3	2020-08-18 01:52:08 +09:00
Makefile.gcc-plugins	gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving	2020-06-24 07:48:28 -07:00
Makefile.headersinst	kbuild: move headers_check rule to usr/include/Makefile	2019-11-15 00:23:10 +09:00
Makefile.host	kbuild: sort hostprogs before passing it to ifneq	2020-08-10 01:32:59 +09:00
Makefile.kasan	kasan: allow enabling stack tagging for tag-based mode	2020-08-07 11:33:28 -07:00
Makefile.kcov	kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled	2020-08-10 01:32:59 +09:00
Makefile.kcsan	kcsan: Support compounded read-write instrumentation	2020-08-24 15:09:32 -07:00
Makefile.lib	Kbuild updates for v5.9	2020-08-09 14:10:26 -07:00
Makefile.modfinal	kbuild: move modkern_{c,a}flags to Makefile.lib from Makefile.build	2019-08-22 01:14:11 +09:00
Makefile.modinst	kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod	2019-07-17 22:39:27 +09:00
Makefile.modpost	kbuild: remove redundant FORCE definition in scripts/Makefile.modpost	2020-08-02 23:09:16 +09:00
Makefile.modsign	kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod	2019-07-17 22:39:27 +09:00
Makefile.package	kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables	2020-06-11 20:14:41 +09:00
Makefile.ubsan	kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled	2020-08-10 01:32:59 +09:00
Makefile.userprogs	kbuild: add infrastructure to build userspace programs	2020-05-17 18:52:01 +09:00
makelst	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
markup_oops.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 373	2019-06-05 17:37:10 +02:00
mkcompile_h	kbuild: use CONFIG_CC_VERSION_TEXT to construct LINUX_COMPILER macro	2020-05-12 13:28:33 +09:00
mkmakefile	kbuild: get rid of $(realpath ...) from scripts/mkmakefile	2019-08-29 23:54:29 +09:00
mksysmap	mksysmap: Fix the mismatch of '.L' symbols in System.map	2020-06-06 23:39:20 +09:00
mkuboot.sh	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
module-common.lds	module: set .init_array alignment to 8	2017-03-13 09:40:28 -07:00
modules-check.sh	kbuild: make module name conflict fatal error	2020-05-26 00:03:16 +09:00
namespace.pl	namespace: fix namespace.pl script to support relative paths	2019-10-05 15:29:49 +09:00
nsdeps	scripts: add dummy report mode to add_namespace.cocci	2020-07-10 14:19:58 +02:00
objdiff	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 199	2019-05-30 11:29:23 -07:00
parse-maintainers.pl	parse-maintainers: Do not sort section content by default	2020-03-26 15:08:27 -07:00
patch-kernel	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
profile2linkerlist.pl	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
prune-kernel	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
recordmcount.c	recordmcount: Fix build failure on non arm64	2020-08-10 15:22:06 +01:00
recordmcount.h	recordmcount: support >64k sections	2020-06-16 21:21:00 -04:00
recordmcount.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
setlocalversion	scripts: setlocalversion: replace backquote to dollar parenthesis	2019-11-11 20:10:01 +09:00
show_delta	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438	2019-06-05 17:37:17 +02:00
sign-file.c
sorttable.c	s390/kernel: expand exception table logic to allow new handling options	2020-07-20 10:55:50 +02:00
sorttable.h	scripts/sorttable: Implement build-time ORC unwind table sorting	2019-12-13 10:47:58 +01:00
spdxcheck-test.sh	scripts: add spdxcheck.py self test	2018-12-28 12:11:44 -08:00
spdxcheck.py	spdxcheck.py: fix directory structures	2019-06-01 15:51:31 -07:00
spelling.txt	scripts/spelling.txt: add "arbitrary" typo	2020-10-13 18:38:26 -07:00
sphinx-pre-install	docs: Don't push Sphinx upgrades quite so readily	2020-06-26 09:31:53 -06:00
split-man.pl	MAINTAINERS & files: Canonize the e-mails I use at files	2018-05-04 06:21:06 -04:00
stackdelta	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
stackusage	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
subarch.include	selftests: add headers_install to lib.mk	2018-09-05 08:12:09 -06:00
tags.sh	Merge branch 'locking/urgent' into locking/core, to pick up fixes	2020-10-09 08:55:17 +02:00
tools-support-relr.sh	scripts/tools-support-relr.sh: un-quote variables	2019-11-13 10:52:05 +00:00
unifdef.c	unifdef: use memcpy instead of strncpy	2018-11-30 14:45:01 -08:00
ver_linux	ver_linux: Query ld cache for versions of libc/libcpp run-time	2020-02-10 13:35:15 -08:00
xen-hypercalls.sh	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xz_wrap.sh	kbuild: add variables for compression tools	2020-06-06 23:42:01 +09:00