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-rw-r--r--net/sunrpc/auth_gss/auth_gss.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index f7a7f8380e38..0cfccc2a0297 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -206,8 +206,14 @@ gss_fill_context(const void *p, const void *end, struct gss_cl_ctx *ctx, struct
ctx->gc_win = window_size;
/* gssd signals an error by passing ctx->gc_win = 0: */
if (ctx->gc_win == 0) {
- /* in which case, p points to an error code which we ignore */
- p = ERR_PTR(-EACCES);
+ /*
+ * in which case, p points to an error code. Anything other
+ * than -EKEYEXPIRED gets converted to -EACCES.
+ */
+ p = simple_get_bytes(p, end, &ret, sizeof(ret));
+ if (!IS_ERR(p))
+ p = (ret == -EKEYEXPIRED) ? ERR_PTR(-EKEYEXPIRED) :
+ ERR_PTR(-EACCES);
goto err;
}
/* copy the opaque wire context */
@@ -646,6 +652,7 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
err = PTR_ERR(p);
switch (err) {
case -EACCES:
+ case -EKEYEXPIRED:
gss_msg->msg.errno = err;
err = mlen;
break;