diff --git a/iputils-20121221-sigalrm-unblock.patch b/iputils-20121221-sigalrm-unblock.patch
new file mode 100644
index 0000000..3633f67
--- /dev/null
+++ b/iputils-20121221-sigalrm-unblock.patch
@@ -0,0 +1,32 @@
+Author: Rui Prior <rprior@dcc.fc.up.pt>
+Resolves: #1085971
+
+--- iputils-s20121221-orig/arping.c     2014-04-10 15:41:29.158243387 +0100
++++ iputils-s20121221-new/arping.c      2014-04-10 16:02:06.000000000 +0100
+@@ -1215,16 +1215,22 @@ main(int argc, char **argv)
+ 		socklen_t alen = sizeof(from);
+ 		int cc;
+ 
++		sigemptyset(&sset);
++		sigaddset(&sset, SIGALRM);
++		sigaddset(&sset, SIGINT);
++		/* Unblock SIGALRM so that the previously called alarm()
++		 * can prevent recvfrom from blocking forever in case the
++		 * inherited procmask is blocking SIGALRM and no packet
++		 * is received. */
++		sigprocmask(SIG_UNBLOCK, &sset, &osset);
++
+ 		if ((cc = recvfrom(s, packet, sizeof(packet), 0,
+ 				   (struct sockaddr *)&from, &alen)) < 0) {
+ 			perror("arping: recvfrom");
+ 			continue;
+ 		}
+ 
+-		sigemptyset(&sset);
+-		sigaddset(&sset, SIGALRM);
+-		sigaddset(&sset, SIGINT);
+-		sigprocmask(SIG_BLOCK, &sset, &osset);
++		sigprocmask(SIG_BLOCK, &sset, NULL);
+ 		recv_pack(packet, cc, (struct sockaddr_ll *)&from);
+ 		sigprocmask(SIG_SETMASK, &osset, NULL);
+ 	}
diff --git a/iputils.spec b/iputils.spec
index 91afa99..ac03fa4 100644
--- a/iputils.spec
+++ b/iputils.spec
@@ -3,7 +3,7 @@
 Summary: Network monitoring tools including ping
 Name: iputils
 Version: 20121221
-Release: 9%{?dist}
+Release: 10%{?dist}
 # some parts are under the original BSD (ping.c)
 # some are under GPLv2+ (tracepath.c)
 License: BSD and GPLv2+
@@ -19,6 +19,7 @@ Patch0: iputils-20020927-rh.patch
 Patch1: iputils-ifenslave.patch
 Patch2: iputils-20121221-floodlocale.patch
 Patch3: iputils-20121221-eperm-flood.patch
+Patch4: iputils-20121221-sigalrm-unblock.patch
 
 BuildRequires: docbook-utils perl-SGMLSpm
 BuildRequires: glibc-kernheaders >= 2.4-8.19
@@ -60,6 +61,7 @@ Queries.
 %patch1 -p1 -b .addr
 %patch2 -p1 -b .floc
 %patch3 -p1 -b .eperm
+%patch4 -p1 -b .sigalrm
 
 %build
 %ifarch s390 s390x
@@ -160,6 +162,9 @@ mv -f RELNOTES.tmp RELNOTES
 %attr(644,root,root) %{_mandir}/man8/ninfod.8.gz
 
 %changelog
+* Fri Apr 11 2014 Jan Synáček <jsynacek@redhat.com> - 20121221-10
+- Fix arping hang if SIGALRM is blocked (#1085971)
+
 * Wed Mar 26 2014 Jan Synáček <jsynacek@redhat.com> - 20121221-9
 - Fix message flood when EPERM is encountered in ping (#1061867)