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linux/scripts/kconfig
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Masahiro Yamada ae1eff0349 kconfig: fix memory leak from range properties 
Currently, sym_validate_range() duplicates the range string using
xstrdup(), which is overwritten by a subsequent sym_calc_value() call.
It results in a memory leak.

Instead, only the pointer should be copied.

Below is a test case, with a summary from Valgrind.

[Test Kconfig]

  config FOO
          int "foo"
          range 10 20

[Test .config]

  CONFIG_FOO=0

[Before]

  LEAK SUMMARY:
     definitely lost: 3 bytes in 1 blocks
     indirectly lost: 0 bytes in 0 blocks
       possibly lost: 0 bytes in 0 blocks
     still reachable: 17,465 bytes in 21 blocks
          suppressed: 0 bytes in 0 blocks

[After]

  LEAK SUMMARY:
     definitely lost: 0 bytes in 0 blocks
     indirectly lost: 0 bytes in 0 blocks
       possibly lost: 0 bytes in 0 blocks
     still reachable: 17,462 bytes in 20 blocks
          suppressed: 0 bytes in 0 blocks

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-11-17 13:24:08 +09:00
..
lxdialog kconfig: menuconfig: simplify global jump key assignment 2023-07-25 00:59:32 +09:00
tests kconfig: change "modules" from sub-option to first-level attribute 2021-04-14 15:22:49 +09:00
.gitignore kconfig: Update all declared targets 2023-01-13 16:29:52 +09:00
conf.c Kconfig: remove sym_set_choice_value 2022-09-29 04:40:15 +09:00
confdata.c kconfig: add warn-unknown-symbols sanity check 2023-09-01 16:38:04 +09:00
expr.c kconfig: distinguish between dependencies and visibility in help text 2020-01-07 02:18:45 +09:00
expr.h kconfig: menuconfig: remove jump_key::index 2023-07-25 00:59:32 +09:00
gconf-cfg.sh kconfig: refactor Makefile to reduce process forks 2022-12-13 22:29:10 +09:00
gconf.c kconfig: gconfig: correct program name in help text 2023-07-12 23:46:57 +09:00
gconf.glade
images.c kconfig: constify XPM data 2020-08-14 13:30:03 +09:00
images.h kconfig: constify XPM data 2020-08-14 13:30:03 +09:00
internal.h kconfig: split menu.c out of parser.y 2021-04-14 15:26:09 +09:00
lexer.l kconfig: rename a variable in the lexer to a clearer name 2021-09-30 02:08:59 +09:00
list.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lkc_proto.h kconfig: move sym_escape_string_value() to confdata.c 2021-10-11 23:13:23 +09:00
lkc.h kconfig: menuconfig: simplify global jump key assignment 2023-07-25 00:59:32 +09:00
Makefile kbuild: Show marked Kconfig fragments in "help" 2023-09-04 02:04:20 +09:00
mconf-cfg.sh kconfig: refactor Makefile to reduce process forks 2022-12-13 22:29:10 +09:00
mconf.c kconfig: menuconfig: remove jump_key::index 2023-07-25 00:59:32 +09:00
menu.c kconfig: menuconfig: remove jump_key::index 2023-07-25 00:59:32 +09:00
merge_config.sh scripts: merge_config: Fix typo in variable name. 2023-03-23 15:27:40 +09:00
nconf-cfg.sh kconfig: refactor Makefile to reduce process forks 2022-12-13 22:29:10 +09:00
nconf.c kconfig: nconf: Add search jump feature 2023-08-13 21:29:41 +09:00
nconf.gui.c kconfig: nconf: Add search jump feature 2023-08-13 21:29:41 +09:00
nconf.h kconfig: nconf: Add search jump feature 2023-08-13 21:29:41 +09:00
parser.y kconfig: split menu.c out of parser.y 2021-04-14 15:26:09 +09:00
preprocess.c kconfig: fix possible buffer overflow 2023-09-06 02:00:02 +09:00
qconf-cfg.sh kconfig: port qconf to work with Qt6 in addition to Qt5 2023-08-16 12:06:29 +09:00
qconf.cc kconfig: port qconf to work with Qt6 in addition to Qt5 2023-08-16 12:06:29 +09:00
qconf.h kconfig: qconf: remove Y, M, N columns 2020-09-25 00:37:13 +09:00
streamline_config.pl streamline_config.pl: handle also ${CONFIG_FOO} 2023-06-08 11:11:32 +09:00
symbol.c kconfig: fix memory leak from range properties 2023-11-17 13:24:08 +09:00
util.c kconfig: remove const qualifier from str_get() 2022-11-21 10:18:39 +09:00