2 files changed, 3 insertions, 1 deletions
diff --git a/NEWS b/NEWS
index 127a4e2..e149424 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,5 @@
+- fix crashing on undefined packages (#54521)
+
 Version 3.36 - 23 July 2010
 
 - Fix wrong deferencement on HASH (warning triggered by perl 5.12)
diff --git a/URPM.pm b/URPM.pm
index 72278a1..541e292 100644
--- a/URPM.pm
+++ b/URPM.pm
@@ -30,7 +30,7 @@ sub set_nofatal { $_[0]{nofatal} = $_[1] }
 
 sub packages_providing {
     my ($urpm, $name) = @_;
-    map { $urpm->{depslist}[$_] } keys %{$urpm->{provides}{$name} || {}};
+    grep { $_ } map { $urpm->{depslist}[$_] } keys %{$urpm->{provides}{$name} || {}};
 }
 
 sub packages_obsoleting {