Merge branch 'iommu/largepages' into amd-iommu/2.6.35

[karo-tx-linux.git] / fs / 9p / vfs_inode.c

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index ae8396707707f2930dde969e7ce5a0d555964be0..f2434fc9d2c44f620e2e579a19318321e12d6e71 100644 (file)
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -34,6 +34,7 @@
 #include <linux/namei.h>
 #include <linux/idr.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 
@@ -660,6 +661,9 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
        P9_DPRINTK(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
                dir, dentry->d_name.name, dentry, nameidata);
 
+       if (dentry->d_name.len > NAME_MAX)
+               return ERR_PTR(-ENAMETOOLONG);
+
        sb = dir->i_sb;
        v9ses = v9fs_inode2v9ses(dir);
        dfid = v9fs_fid_lookup(dentry->d_parent);