Commit 0979292b authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

svcrpc: fix failures to handle -1 uid's

As of f025adf1 "sunrpc: Properly decode
kuids and kgids in RPC_AUTH_UNIX credentials" any rpc containing a -1
(0xffff) uid or gid would fail with a badcred error.

Commit afe3c3fd

 "svcrpc: fix failures to
handle -1 uid's and gid's" fixed part of the problem, but overlooked the
gid upcall--the kernel can request supplementary gid's for the -1 uid,
but mountd's attempt write a response will get -EINVAL.

Symptoms were nfsd failing to reply to the first attempt to use a newly
negotiated krb5 context.
Reported-by: default avatarSven Geggus <lists@fuchsschwanzdomain.de>
Tested-by: default avatarSven Geggus <lists@fuchsschwanzdomain.de>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 0bebc633
......@@ -493,8 +493,6 @@ static int unix_gid_parse(struct cache_detail *cd,
if (rv)
return -EINVAL;
uid = make_kuid(&init_user_ns, id);
if (!uid_valid(uid))
return -EINVAL;
ug.uid = uid;
expiry = get_expiry(&mesg);
......
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