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| author | Chuck Lever <chuck.lever@oracle.com> | 2022-11-26 15:55:18 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-18 11:30:41 +0100 |
| commit | 76f2497a2faa6a4e91efb94a7f55705b403273fd (patch) | |
| tree | 76317fc36821b1a8c7e958b1c8ede6a2c1288e3d | |
| parent | de667a2704ae799f697fd45cf4317623d8c79fb7 (diff) | |
| download | linux-stable-76f2497a2faa6a4e91efb94a7f55705b403273fd.tar.gz linux-stable-76f2497a2faa6a4e91efb94a7f55705b403273fd.tar.bz2 linux-stable-76f2497a2faa6a4e91efb94a7f55705b403273fd.zip | |
SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails
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>
| -rw-r--r-- | net/sunrpc/auth_gss/svcauth_gss.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index d9d03881e4de..ed6b2a155f44 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1088,18 +1088,23 @@ static int gss_read_proxy_verf(struct svc_rqst *rqstp, 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; } |