Merge branch 'nfs-for-2.6.37' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

[net-next-2.6.git] / net / sunrpc / auth_gss / gss_krb5_mech.c

diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 8a4d083c9b30b4799fb0c71d2b5b4219e8520a43..f375decc024b4bbd176ee448fc72e26fc4cd020c 100644 (file)
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -237,6 +237,7 @@ get_key(const void *p, const void *end,
        if (!supported_gss_krb5_enctype(alg)) {
                printk(KERN_WARNING "gss_kerberos_mech: unsupported "
                        "encryption key algorithm %d\n", alg);
+               p = ERR_PTR(-EINVAL);
                goto out_err;
        }
        p = simple_get_netobj(p, end, &key);
@@ -282,15 +283,19 @@ gss_import_v1_context(const void *p, const void *end, struct krb5_ctx *ctx)
        ctx->enctype = ENCTYPE_DES_CBC_RAW;
 
        ctx->gk5e = get_gss_krb5_enctype(ctx->enctype);
-       if (ctx->gk5e == NULL)
+       if (ctx->gk5e == NULL) {
+               p = ERR_PTR(-EINVAL);
                goto out_err;
+       }
 
        /* The downcall format was designed before we completely understood
         * the uses of the context fields; so it includes some stuff we
         * just give some minimal sanity-checking, and some we ignore
         * completely (like the next twenty bytes): */
-       if (unlikely(p + 20 > end || p + 20 < p))
+       if (unlikely(p + 20 > end || p + 20 < p)) {
+               p = ERR_PTR(-EFAULT);
                goto out_err;
+       }
        p += 20;
        p = simple_get_bytes(p, end, &tmp, sizeof(tmp));
        if (IS_ERR(p))
@@ -619,6 +624,7 @@ gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,
        if (ctx->seq_send64 != ctx->seq_send) {
                dprintk("%s: seq_send64 %lx, seq_send %x overflow?\n", __func__,
                        (long unsigned)ctx->seq_send64, ctx->seq_send);
+               p = ERR_PTR(-EINVAL);
                goto out_err;
        }
        p = simple_get_bytes(p, end, &ctx->enctype, sizeof(ctx->enctype));