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[V9fs-developer] Creating files with names too long should fail with ENAMETOOLONG.

Message ID 20100324115731.6edb2784@in.ibm.com (mailing list archive)
State Accepted
Delegated to: Eric Van Hensbergen
Headers show

Commit Message

Sripathi Kodi March 24, 2010, 6:27 a.m. UTC
None
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Patch

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index ae83967..905f664 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -660,6 +660,9 @@  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);