From: Masahiro Yamada <masahiroy@kernel.org>
Date: Mon, 20 Jan 2025 08:10:31 +0000 (+0900)
Subject: kconfig: fix memory leak in sym_warn_unmet_dep()
X-Git-Tag: v5.15.179~434
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4bd72d9fe11df45098f247353374bb4b7a891bb3;p=thirdparty%2Fkernel%2Fstable.git

kconfig: fix memory leak in sym_warn_unmet_dep()

[ Upstream commit a409fc1463d664002ea9bf700ae4674df03de111 ]

The string allocated in sym_warn_unmet_dep() is never freed, leading
to a memory leak when an unmet dependency is detected.

Fixes: f8f69dc0b4e0 ("kconfig: make unmet dependency warnings readable")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 15d958ba99880..d1e9c06456ae6 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -321,6 +321,7 @@ static void sym_warn_unmet_dep(struct symbol *sym)
 			       "  Selected by [m]:\n");
 
 	fputs(str_get(&gs), stderr);
+	str_free(&gs);
 	sym_warnings++;
 }