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Masahiro Yamada 7a263a0402 kconfig: fix segmentation fault in menuconfig search 
Since commit d05377e184 ("kconfig: Create links to main menu items
in search"), menuconfig shows a jump key next to "Main menu" if the
nearest visible parent is the rootmenu. If you press that jump key,
menuconfig crashes with a segmentation fault.

For example, do this:

  $ make ARCH=arm64 allnoconfig menuconfig

Press '/' to search for the string "ACPI". Press '1' to choose
"(1) Main menu". Then, menuconfig crashed with a segmentation fault.

The following code in search_conf()

    conf(targets[i]->parent, targets[i]);

results in NULL pointer dereference because targets[i] is the rootmenu,
which does not have a parent.

Commit d05377e184 tried to fix the issue of top-level items not having
a jump key, but adding the "Main menu" was not the right fix.

The correct fix is to show the searched item itself. This fixes another
weird behavior described in the comment block.

Fixes: d05377e184 ("kconfig: Create links to main menu items in search")
Reported-by: Johannes Zink <j.zink@pengutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Johannes Zink <j.zink@pengutronix.de>
History 2022-11-02 17:32:05 +09:00
..
atomic
basic
clang-tools
coccinelle update Coccinelle URL 2022-08-07 21:30:36 +02:00
dtc dt: Add a check for undocumented compatible strings in kernel 2022-09-27 10:36:16 -05:00
dummy-tools
gcc-plugins treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE 2022-06-10 14:51:36 +02:00
gdb
genksyms
kconfig
ksymoops
mod modpost: fix module versioning when a symbol lacks valid CRC 2022-08-21 02:47:36 +09:00
package
selinux selinux: remove runtime disable message in the install_policy.sh script 2022-09-20 14:12:25 -04:00
tracing scripts/tracing: Fix typo 'the the' in comment 2022-08-02 15:17:00 -04:00
.gitignore
adjust_autoksyms.sh kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
as-version.sh kbuild: Switch to 'f' variants of integrated assembler flag 2021-09-03 08:17:20 +09:00
asn1_compiler.c
bin2c.c kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
bloat-o-meter
bootgraph.pl
bpf_doc.py
cc-can-link.sh
cc-version.sh
check-local-export
check-sysctl-docs
check_extable.sh
checkdeclares.pl scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
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
checkpatch.pl
checkstack.pl
checksyscalls.sh checksyscalls: ignore -Wunused-macros 2022-05-08 03:16:59 +09:00
checkversion.pl
cleanfile
cleanpatch
coccicheck scripts: coccicheck: fix troubles on non-English builds 2021-05-18 11:09:59 +02:00
config
const_structs.checkpatch const_structs.checkpatch: add frequently used ops structs 2022-01-20 08:52:54 +02:00
decode_stacktrace.sh
decodecode scripts/decodecode: improve faulting line determination 2022-09-11 21:55:05 -07:00
depmod.sh
dev-needs.sh
diffconfig scripts: switch explicitly to Python 3 2021-01-22 06:34:44 +09:00
documentation-file-ref-check
export_report.pl modpost: move the namespace field in Module.symvers last 2020-03-17 08:59:03 +09:00
extract-ikconfig scripts/extract-ikconfig: add zstd compression support 2022-08-29 13:58:47 +09:00
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
extract-vmlinux treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378 2019-06-05 17:37:10 +02:00
extract_xc3028.pl
faddr2line
file-size.sh
find-unused-docs.sh scripts/find-unused-docs: Fix massive false positives 2020-01-27 14:25:06 -07:00
gcc-x86_32-has-stack-protector.sh x86/stackprotector/32: Make the canary into a regular percpu variable 2021-03-08 13:19:05 +01:00
gcc-x86_64-has-stack-protector.sh
gen-randstruct-seed.sh
gen_autoksyms.sh
gen_ksymdeps.sh
generate_initcall_order.pl
generate_rust_analyzer.py scripts: add generate_rust_analyzer.py 2022-09-28 09:02:06 +02:00
generate_rust_target.rs x86: enable initial Rust support 2022-09-28 09:02:45 +02:00
get_abi.pl
get_dvb_firmware
get_feat.pl scripts: get_feat.pl: use /usr/bin/env to find perl 2022-06-30 12:22:17 -06:00
get_maintainer.pl
gfp-translate
head-object-list.txt
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_install.sh
insert-sys-cert.c
install.sh
is_rust_module.sh
jobserver-exec scripts/jobserver-exec: Fix a typo ("envirnoment") 2021-05-17 12:10:03 +09:00
kallsyms.c
Kbuild.include kbuild: remove the target in signal traps when interrupted 2022-09-29 02:00:29 +09:00
Kconfig.include Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
kernel-doc
ld-version.sh
leaking_addresses.pl
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
Makefile
Makefile.asm-generic
Makefile.build
Makefile.clang
Makefile.clean
Makefile.compiler
Makefile.debug
Makefile.dtbinst kbuild: prefix $(srctree)/ to some included Makefiles 2021-03-15 19:20:48 +09:00
Makefile.extrawarn
Makefile.gcc-plugins
Makefile.headersinst kbuild: prefix $(srctree)/ to some included Makefiles 2021-03-15 19:20:48 +09:00
Makefile.host
Makefile.kasan kasan: always respect CONFIG_KASAN_STACK 2021-09-24 16:13:35 -07:00
Makefile.kcov kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled 2020-08-10 01:32:59 +09:00
Makefile.kcsan
Makefile.kmsan
Makefile.lib
Makefile.modfinal Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Makefile.modinst kbuild: error out if $(INSTALL_MOD_PATH) contains % or : 2022-07-27 21:18:00 +09:00
Makefile.modpost
Makefile.package
Makefile.randstruct randstruct: Enable Clang support 2022-05-08 01:33:07 -07:00
Makefile.ubsan
Makefile.userprogs
Makefile.vmlinux
Makefile.vmlinux_o
makelst
markup_oops.pl
min-tool-version.sh
mkcompile_h
mksysmap
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.lds.S
modules-check.sh
nsdeps
objdiff kbuild: clean .tmp_* pattern by make clean 2022-06-05 06:20:57 +09:00
objdump-func scripts: Create objdump-func helper script 2022-05-12 10:08:43 -07:00
pahole-flags.sh
pahole-version.sh
parse-maintainers.pl parse-maintainers: Do not sort section content by default 2020-03-26 15:08:27 -07:00
patch-kernel
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 scripts/prune-kernel: Use kernel-install if available 2022-05-11 21:46:38 +09:00
recordmcount.c ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount 2021-03-02 17:27:18 -05:00
recordmcount.h
recordmcount.pl
remove-stale-files RISC-V Patches for the 5.20 Merge Window, Part 2 2022-08-12 18:39:43 -07:00
rust_is_available.sh
rust_is_available_bindgen_libclang.h
setlocalversion
show_delta
sign-file.c
sorttable.c LoongArch: Add ELF-related definitions 2022-06-03 20:09:27 +08:00
sorttable.h
spdxcheck-test.sh
spdxcheck.py scripts/spdxcheck: Put excluded files and directories into a separate file 2022-05-18 15:34:33 +02:00
spdxexclude
spelling.txt scripts/spelling.txt: add more spellings to spelling.txt 2022-03-22 15:57:00 -07:00
sphinx-pre-install
split-man.pl tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
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
syscallhdr.sh scripts: check duplicated syscall number in syscall table 2021-07-09 04:00:39 +09:00
syscallnr.sh
syscalltbl.sh
tags.sh scripts/tags.sh: Include tools directory in tags generation 2022-07-01 10:32:30 +02:00
test_fortify.sh
tools-support-relr.sh
unifdef.c
ver_linux Removed the oprofiled version option 2021-05-03 17:23:06 -06:00
xen-hypercalls.sh
xz_wrap.sh