From 48637e0924dcd13629ebf3aeffa80cdda1beb5af Mon Sep 17 00:00:00 2001
From: Denis Vlasenko
Date: Thu, 26 Feb 2009 12:00:52 +0000
Subject: modutils: oveflow fix

---
 modutils/modutils.c | 2 +-
 modutils/modutils.h | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/modutils/modutils.c b/modutils/modutils.c
index 0d7d72d..8836f7c 100644
--- a/modutils/modutils.c
+++ b/modutils/modutils.c
@@ -71,7 +71,7 @@ char * FAST_FUNC filename2modname(const char *filename, char *modname)
 	if (modname == NULL)
 		modname = xmalloc(MODULE_NAME_LEN);
 	from = bb_get_last_path_component_nostrip(filename);
-	for (i = 0; i < MODULE_NAME_LEN && from[i] != '\0' && from[i] != '.'; i++)
+	for (i = 0; i < (MODULE_NAME_LEN-1) && from[i] != '\0' && from[i] != '.'; i++)
 		modname[i] = (from[i] == '-') ? '_' : from[i];
 	modname[i] = 0;
 
diff --git a/modutils/modutils.h b/modutils/modutils.h
index 6aaf79d..cc7c653 100644
--- a/modutils/modutils.h
+++ b/modutils/modutils.h
@@ -15,8 +15,9 @@
 # pragma GCC visibility push(hidden)
 #endif
 
-/* As defined in linux/include/linux/module.h */
-#define MODULE_NAME_LEN 64
+/* linux/include/linux/module.h has 64, but this is also used
+ * internally for the maximum alias name length, which can be quite long */
+#define MODULE_NAME_LEN 256
 
 const char *moderror(int err) FAST_FUNC;
 llist_t *llist_find(llist_t *first, const char *str) FAST_FUNC;
-- 
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