From: Chuck Lever chuck.lever@oracle.com
commit da522b5fe1a5f8b7c20a0023e87b52a150e53bf5 upstream.
Fixes: 030d794bf498 ("SUNRPC: Use gssproxy upcall for server RPCGSS authentication.") Signed-off-by: Chuck Lever chuck.lever@oracle.com Cc: stable@vger.kernel.org Reviewed-by: Jeff Layton jlayton@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sunrpc/auth_gss/svcauth_gss.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
--- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1162,18 +1162,23 @@ static int gss_read_proxy_verf(struct sv return res;
inlen = svc_getnl(argv); - if (inlen > (argv->iov_len + rqstp->rq_arg.page_len)) + if (inlen > (argv->iov_len + rqstp->rq_arg.page_len)) { + kfree(in_handle->data); return SVC_DENIED; + }
pages = DIV_ROUND_UP(inlen, PAGE_SIZE); in_token->pages = kcalloc(pages, sizeof(struct page *), GFP_KERNEL); - if (!in_token->pages) + if (!in_token->pages) { + kfree(in_handle->data); return SVC_DENIED; + } in_token->page_base = 0; in_token->page_len = inlen; for (i = 0; i < pages; i++) { in_token->pages[i] = alloc_page(GFP_KERNEL); if (!in_token->pages[i]) { + kfree(in_handle->data); gss_free_in_token_pages(in_token); return SVC_DENIED; }