Commit ee4e5271 authored by Miklos Szeredi's avatar Miklos Szeredi Committed by Linus Torvalds
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[PATCH] fuse: check reserved node ID values

This patch checks reserved node ID values returned by lookup and creation
operations.  In case one of the reserved values is sent, return -EIO.
Signed-off-by: default avatarMiklos Szeredi <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 909021ea
......@@ -96,6 +96,8 @@ static int fuse_lookup_iget(struct inode *dir, struct dentry *entry,
fuse_lookup_init(req, dir, entry, &outarg);
request_send(fc, req);
err = req->out.h.error;
if (!err && (!outarg.nodeid || outarg.nodeid == FUSE_ROOT_ID))
err = -EIO;
if (!err) {
inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation,
......@@ -152,6 +154,10 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
fuse_put_request(fc, req);
return err;
if (!outarg.nodeid || outarg.nodeid == FUSE_ROOT_ID) {
fuse_put_request(fc, req);
return -EIO;
inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation,
if (!inode) {
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