diff --git a/icu.9948.mlym-crash.patch b/icu.9948.mlym-crash.patch
new file mode 100644
index 0000000..b9e7e7f
--- /dev/null
+++ b/icu.9948.mlym-crash.patch
@@ -0,0 +1,11 @@
+--- icu/source/layout/IndicClassTables.cpp	2013-02-19 16:04:09.919412782 +0000
++++ icu/source/layout/IndicClassTables.cpp	2013-02-19 16:04:14.519351601 +0000
+@@ -273,7 +273,7 @@
+ 
+ static const IndicClassTable kndaClassTable = {0x0C80, 0x0CEF, 4, KNDA_SCRIPT_FLAGS, kndaCharClasses, kndaSplitTable};
+ 
+-static const IndicClassTable mlymClassTable = {0x0D00, 0x0D6F, 3, MLYM_SCRIPT_FLAGS, mlymCharClasses, mlymSplitTable};
++static const IndicClassTable mlymClassTable = {0x0D00, 0x0D6F, 4, MLYM_SCRIPT_FLAGS, mlymCharClasses, mlymSplitTable};
+ 
+ static const IndicClassTable sinhClassTable = {0x0D80, 0x0DF4, 4, SINH_SCRIPT_FLAGS, sinhCharClasses, sinhSplitTable};
+ 
diff --git a/icu.spec b/icu.spec
index bd77081..458a13b 100644
--- a/icu.spec
+++ b/icu.spec
@@ -1,6 +1,6 @@
 Name:      icu
 Version:   50.1.2
-Release:   3%{?dist}
+Release:   4%{?dist}
 Summary:   International Components for Unicode
 Group:     Development/Tools
 License:   MIT and UCD and Public Domain
@@ -13,6 +13,7 @@ Requires: lib%{name} = %{version}-%{release}
 Patch1: icu.8198.revert.icu5431.patch
 Patch2: icu.8800.freeserif.crash.patch
 Patch3: icu.7601.Indic-ccmp.patch
+Patch4: icu.9948.mlym-crash.patch
 
 %description
 Tools and utilities for developing with icu.
@@ -58,6 +59,7 @@ BuildArch: noarch
 %patch1 -p2 -R -b .icu8198.revert.icu5431.patch
 %patch2 -p1 -b .icu8800.freeserif.crash.patch
 %patch3 -p1 -b .icu7601.Indic-ccmp.patch
+%patch4 -p1 -b .icu9948.mlym-crash.patch
 
 %build
 cd source
@@ -164,6 +166,9 @@ make %{?_smp_mflags} -C source check
 %doc source/__docs/%{name}/html/*
 
 %changelog
+* Tue Feb 19 2013 Caolán McNamara <caolanm@redhat.com> - 50.1.2-4
+- Resolves: fdo#52519 crash on typing some Malayalam
+
 * Tue Jan 29 2013 Eike Rathke <erack@redhat.com> - 50.1.2-3
 - Resolves: rhbz#856594 roll back and build without --disable-renaming again