diff --git a/glibc.spec b/glibc.spec
index fa280e2..0195e5f 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,6 +1,6 @@
-%define glibcsrcdir glibc-2.28-98-g5cbb73004b
+%define glibcsrcdir glibc-2.28-102-g4a5e58827f
 %define glibcversion 2.28
-%define glibcrelease 29%{?dist}
+%define glibcrelease 30%{?dist}
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
 #
@@ -1909,6 +1909,11 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Thu May 02 2019 Arjun Shankar <arjun@redhat.com> - 2.28-30
+- Auto-sync with upstream branch release/2.28/master,
+  commit 4a5e58827f2b6efa94ea50a9db5f3c861173837f:
+- malloc: Improve bad chunk detection (#1705549)
+
 * Fri Apr 26 2019 Florian Weimer <fweimer@redhat.com> - 2.28-29
 - Auto-sync with upstream branch release/2.28/master,
   commit 5cbb73004b635e762e20b447c2d93c307cb40f41:
diff --git a/sources b/sources
index 60da80b..f7e8bd8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.28-98-g5cbb73004b.tar.xz) = fb7b200f94ea264e32b2b9ecefe437dfd65a518bf093fc5f6b6d15b0df64a7f39c9fbff7a0b43dcfab230468e10adfcf1eb00b8128b7bc590e76d428727f8165
+SHA512 (glibc-2.28-102-g4a5e58827f.tar.xz) = 1acb10bfa1871ee5046eebda9f7be3cebb01c00dc90c5a84b2dd96aa1e72c9c63fddb2595e14516bfa025dc618a997a612f0452bf1079f7ecefe7bc8b315ae90