From 0c4e5d70fde006977e798d6cc7d80db2e8af7bb9 Mon Sep 17 00:00:00 2001

From: Petr Lautrbach <plautrba@redhat.com>

Date: Tue, 23 Nov 2021 17:38:51 +0100

Subject: [PATCH] semodule: Don't forget to munmap() data

semanage_module_extract() mmap()'s the module raw data but it leaves on

the caller to munmap() them.

Reported-by: Ondrej Mosnacek <omosnace@redhat.com>

Signed-off-by: Petr Lautrbach <plautrba@redhat.com>

Acked-by: James Carter <jwcart2@gmail.com>

---

 policycoreutils/semodule/semodule.c | 3 +++

 1 file changed, 3 insertions(+)

diff --git a/policycoreutils/semodule/semodule.c b/policycoreutils/semodule/semodule.c

index 57f005ce2c62..94a9d131bb79 100644

--- a/policycoreutils/semodule/semodule.c

+++ b/policycoreutils/semodule/semodule.c

@@ -394,6 +394,9 @@ static char *hash_module_data(const char *module_name, const int prio) {

 	sha256_buf[i * 2] = 0;

 cleanup_extract:

+	if (data_len > 0) {

+		munmap(data, data_len);

+	}

 	semanage_module_info_destroy(sh, extract_info);

 	free(extract_info);

 	semanage_module_key_destroy(sh, modkey);

-- 

2.33.1