From: Tobias Brunner <tobias@strongswan.org>
Date: Wed, 24 Jul 2013 09:11:25 +0000 (+0200)
Subject: kernel-pfkey: Add sanity check when deleting policies
X-Git-Tag: 5.1.0~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e7d717cf016a7648dc6b42bfd7839a08713af7f7;p=thirdparty%2Fstrongswan.git

kernel-pfkey: Add sanity check when deleting policies
---

diff --git a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
index 214feac05f..668c581e19 100644
--- a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+++ b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
@@ -2543,6 +2543,11 @@ METHOD(kernel_ipsec_t, del_policy, status_t,
 		first = FALSE;
 	}
 	enumerator->destroy(enumerator);
+	if (!to_remove)
+	{	/* sanity check */
+		this->mutex->unlock(this->mutex);
+		return SUCCESS;
+	}
 	policy->used_by->remove(policy->used_by, to_remove, NULL);
 	mapping = to_remove;