SUNRPC: Fix leak of krb5p encode pages
authorChuck Lever <chuck.lever@oracle.com>
Fri, 30 Nov 2018 20:39:57 +0000 (15:39 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Dec 2018 08:21:36 +0000 (09:21 +0100)
commit5f3c652e0f8c943c93f130cdcf05032b4d92ac37
tree7e392271f7f85ee0189f13cc8f7cea2fe496f1e4
parente32c7473a4061646da3f192635bcf7cab15b1364
SUNRPC: Fix leak of krb5p encode pages

commit 8dae5398ab1ac107b1517e8195ed043d5f422bd0 upstream.

call_encode can be invoked more than once per RPC call. Ensure that
each call to gss_wrap_req_priv does not overwrite pointers to
previously allocated memory.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/sunrpc/auth_gss/auth_gss.c