5bfe39f17d
[ Upstream commit 5b1374b3b3c2fc4f63a398adfa446fb8eff791a4 ]
Only the E_NOT operand and not the E_NOT node itself was freed, due to
accidentally returning too early in expr_free(). Outline of leak:
switch (e->type) {
...
case E_NOT:
expr_free(e->left.expr);
return;
...
}
*Never reached, 'e' leaked*
free(e);
Fix by changing the 'return' to a 'break'.
Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix:
LEAK SUMMARY:
definitely lost: 44,448 bytes in 1,852 blocks
...
Summary after the fix:
LEAK SUMMARY:
definitely lost: 1,608 bytes in 67 blocks
...
Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|---|---|---|
| .. | ||
| lxdialog | ||
| .gitignore | ||
| check.sh | ||
| conf.c | ||
| confdata.c | ||
| expr.c | ||
| expr.h | ||
| gconf.c | ||
| gconf.glade | ||
| images.c | ||
| kxgettext.c | ||
| list.h | ||
| lkc_proto.h | ||
| lkc.h | ||
| Makefile | ||
| mconf.c | ||
| menu.c | ||
| 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 | ||
| zconf.lex.c_shipped | ||
| zconf.tab.c_shipped | ||
| zconf.y | ||