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authorTrond Myklebust <Trond.Myklebust@netapp.com>2011-04-06 10:13:32 -0700
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-04-06 11:18:17 -0700
commit0867659fa3c245bf203d837a82e0f6ea5079c2c5 (patch)
treeb4055632e89463046fd32ba20d3a691fd798da95 /net
parent6221f222c0ebf1acdf7abcf927178f40e1a65e2a (diff)
downloadlinux-0867659fa3c245bf203d837a82e0f6ea5079c2c5.tar.gz
Revert "net/sunrpc: Use static const char arrays"
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@skydive 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@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org	[2.6.36+]
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_mech.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 9022f0a6503e..0a9a2ec2e469 100644
--- 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];