X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/36f1098aed548651a32a2c15cc9ad80c4330b4d9..3c54407f8783d5e27363eabf41dbc3d031526ffe:/apt-pkg/policy.cc

diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index f05b6ca49..5427271b6 100644
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -45,6 +45,8 @@ using namespace std;
    file matches the V0 policy engine. */
 pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
 {
+   if (Owner == 0 || &(Owner->Head()) == 0)
+      return;
    PFPriority = new signed short[Owner->Head().PackageFileCount];
    Pins = new Pin[Owner->Head().PackageCount];