2 files changed, 6 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 06a1db4f27..786b71aece 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+1998-03-24  Ulrich Drepper  <drepper@cygnus.com>
+
+	* posix/regex.c (regex_compile): Don't allow non-alphabet
+	characters in character set name.
+
 1998-03-25 00:00  Tim Waugh  <tim@cyberelk.demon.co.uk>
 
 	* posix/wordexp.c (w_newword): New function.
diff --git a/posix/regex.c b/posix/regex.c
index bf0e7c46cc..626244f662 100644
--- a/posix/regex.c
+++ b/posix/regex.c
@@ -2168,7 +2168,7 @@ regex_compile (pattern, size, syntax, bufp)
                     for (;;)
                       {
                         PATFETCH (c);
-                        if (c == ':' || c == ']' || p == pend
+                        if (c == ':' || c == ']' || !isalpha (c) || p == pend
                             || c1 == CHAR_CLASS_MAX_LENGTH)
                           break;
                         str[c1++] = c;