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-rw-r--r--fs/jffs2/dir.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 8bc7a5018e4..f92840a3a52 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -78,6 +78,9 @@ static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
+ if (target->d_name.len > JFFS2_MAX_NAME_LEN)
+ return ERR_PTR(-ENAMETOOLONG);
+
dir_f = JFFS2_INODE_INFO(dir_i);
c = JFFS2_SB_INFO(dir_i->i_sb);