From: Ronnie Sahlberg lsahlber@redhat.com
commit e6d0fb7b34f264f72c33053558a360a6a734905e upstream.
If we enter smb2_query_symlink() for something that is not a symlink and where the SMB2_open() would succeed we would never end up closing this handle and would thus leak a handle on the server.
Fix this by immediately calling SMB2_close() on successfull open.
Signed-off-by: Ronnie Sahlberg lsahlber@redhat.com CC: Stable stable@vger.kernel.org Signed-off-by: Steve French stfrench@microsoft.com Reviewed-by: Pavel Shilovsky pshilov@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/cifs/smb2ops.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1906,6 +1906,8 @@ smb2_query_symlink(const unsigned int xi
rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_iov, &resp_buftype); + if (!rc) + SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); if (!rc || !err_iov.iov_base) { rc = -ENOENT; goto free_path;