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Message-Id: <20110412143554.930009553@clark.kroah.org>
Date: Tue, 12 Apr 2011 07:34:54 -0700
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org, stable@...nel.org
Cc: stable-review@...nel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
Trond Myklebust <Trond.Myklebust@...app.com>
Subject: [065/105] Revert "net/sunrpc: Use static const char arrays"
2.6.38-stable review patch. If anyone has any objections, please let us know.
------------------
From: Trond Myklebust <Trond.Myklebust@...app.com>
commit 0867659fa3c245bf203d837a82e0f6ea5079c2c5 upstream.
This reverts commit 411b5e05617593efebc06241dbc56f42150f2abe.
Olga Kornievskaia reports:
Problem: linux client mounting linux server using rc4-hmac-md5
enctype. gssd fails with create a context after receiving a reply from
the server.
Diagnose: putting printout statements in the server kernel and
kerberos libraries revealed that client and server derived different
integrity keys.
Server kernel code was at fault due the the commit
[aglo@...dive linux-pnfs]$ git show 411b5e05617593efebc06241dbc56f42150f2abe
Trond: The problem is that since it relies on virt_to_page(), you cannot
call sg_set_buf() for data in the const section.
Reported-by: Olga Kornievskaia <aglo@...i.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
net/sunrpc/auth_gss/gss_krb5_mech.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -427,7 +427,7 @@ static int
context_derive_keys_rc4(struct krb5_ctx *ctx)
{
struct crypto_hash *hmac;
- static const char sigkeyconstant[] = "signaturekey";
+ char sigkeyconstant[] = "signaturekey";
int slen = strlen(sigkeyconstant) + 1; /* include null terminator */
struct hash_desc desc;
struct scatterlist sg[1];
--
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