Merge branch 'fixes-non-critical' of git://github.com/hzhuang1/linux into next/maintainers

* 'fixes-non-critical' of git://github.com/hzhuang1/linux:
  MAINTAINERS: update MAINTAINERS email entry
  MAINTAINERS: update maintainer entry for pxa/hx4700

(update to v3.3-rc7)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 15 insertions, 11 deletions

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 5864cc491369..5fe2ff3b01ef 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1335,7 +1335,12 @@ static inline int ebt_make_matchname(const struct ebt_entry_match *m,
     const char *base, char __user *ubase)
 {
 	char __user *hlp = ubase + ((char *)m - base);
-	if (copy_to_user(hlp, m->u.match->name, EBT_FUNCTION_MAXNAMELEN))
+	char name[EBT_FUNCTION_MAXNAMELEN] = {};
+
+	/* ebtables expects 32 bytes long names but xt_match names are 29 bytes
+	   long. Copy 29 bytes and fill remaining bytes with zeroes. */
+	strncpy(name, m->u.match->name, sizeof(name));
+	if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
 }
@@ -1344,7 +1349,10 @@ static inline int ebt_make_watchername(const struct ebt_entry_watcher *w,
     const char *base, char __user *ubase)
 {
 	char __user *hlp = ubase + ((char *)w - base);
-	if (copy_to_user(hlp , w->u.watcher->name, EBT_FUNCTION_MAXNAMELEN))
+	char name[EBT_FUNCTION_MAXNAMELEN] = {};
+
+	strncpy(name, w->u.watcher->name, sizeof(name));
+	if (copy_to_user(hlp , name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
 }
@@ -1355,6 +1363,7 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase)
 	int ret;
 	char __user *hlp;
 	const struct ebt_entry_target *t;
+	char name[EBT_FUNCTION_MAXNAMELEN] = {};
 
 	if (e->bitmask == 0)
 		return 0;
@@ -1368,7 +1377,8 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase)
 	ret = EBT_WATCHER_ITERATE(e, ebt_make_watchername, base, ubase);
 	if (ret != 0)
 		return ret;
-	if (copy_to_user(hlp, t->u.target->name, EBT_FUNCTION_MAXNAMELEN))
+	strncpy(name, t->u.target->name, sizeof(name));
+	if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
 }
@@ -1893,10 +1903,7 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt,
 
 	switch (compat_mwt) {
 	case EBT_COMPAT_MATCH:
-		match = try_then_request_module(xt_find_match(NFPROTO_BRIDGE,
-						name, 0), "ebt_%s", name);
-		if (match == NULL)
-			return -ENOENT;
+		match = xt_request_find_match(NFPROTO_BRIDGE, name, 0);
 		if (IS_ERR(match))
 			return PTR_ERR(match);
 
@@ -1915,10 +1922,7 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt,
 		break;
 	case EBT_COMPAT_WATCHER: /* fallthrough */
 	case EBT_COMPAT_TARGET:
-		wt = try_then_request_module(xt_find_target(NFPROTO_BRIDGE,
-						name, 0), "ebt_%s", name);
-		if (wt == NULL)
-			return -ENOENT;
+		wt = xt_request_find_target(NFPROTO_BRIDGE, name, 0);
 		if (IS_ERR(wt))
 			return PTR_ERR(wt);
 		off = xt_compat_target_offset(wt);