android_kernel_oneplus_msm8998/scripts/kconfig
Masahiro Yamada 0e817654f8 kconfig: fix memory leak when EOF is encountered in quotation
[ Upstream commit fbac5977d81cb2b2b7e37b11c459055d9585273c ]

An unterminated string literal followed by new line is passed to the
parser (with "multi-line strings not supported" warning shown), then
handled properly there.

On the other hand, an unterminated string literal at end of file is
never passed to the parser, then results in memory leak.

[Test Code]

  ----------(Kconfig begin)----------
  source "Kconfig.inc"

  config A
          bool "a"
  -----------(Kconfig end)-----------

  --------(Kconfig.inc begin)--------
  config B
          bool "b\No new line at end of file
  ---------(Kconfig.inc end)---------

[Summary from Valgrind]

  Before the fix:

    LEAK SUMMARY:
       definitely lost: 16 bytes in 1 blocks
       ...

  After the fix:

    LEAK SUMMARY:
       definitely lost: 0 bytes in 0 blocks
       ...

Eliminate the memory leak path by handling this case. Of course, such
a Kconfig file is wrong already, so I will add an error message later.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-01-26 09:42:54 +01:00
..
lxdialog
.gitignore
check.sh
conf.c
confdata.c kconfig: Avoid format overflow warning from GCC 8.1 2018-06-13 16:15:27 +02:00
expr.c kconfig: Fix expr_free() E_NOT leak 2018-05-30 07:48:53 +02:00
expr.h
gconf.c
gconf.glade
images.c
kxgettext.c
list.h
lkc.h
lkc_proto.h
Makefile
mconf.c
menu.c kconfig: Fix automatic menu creation mem leak 2018-05-30 07:48:53 +02:00
merge_config.sh
nconf.c
nconf.gui.c
nconf.h
POTFILES.in
qconf.cc
qconf.h
streamline_config.pl
symbol.c
util.c
zconf.gperf
zconf.hash.c_shipped
zconf.l kconfig: fix memory leak when EOF is encountered in quotation 2019-01-26 09:42:54 +01:00
zconf.lex.c_shipped
zconf.tab.c_shipped
zconf.y