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| author |   J. Bruce Fields <bfields@redhat.com> | 2013-07-08 13:44:45 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2013-07-08 17:27:23 -0400 |
| commit | 0979292bfa301cb87d936b69af428090d2feea1b (patch) | |
| tree | b18525dae7ff397f0ead97f49985a3ece9993df9 /net | |
| parent | sunrpc: Don't schedule an upcall on a replaced cache entry. (diff) | |
| download | linux-dev-0979292bfa301cb87d936b69af428090d2feea1b.tar.xz linux-dev-0979292bfa301cb87d936b69af428090d2feea1b.zip | |
svcrpc: fix failures to handle -1 uid's
As of f025adf191924e3a75ce80e130afcd2485b53bb8 "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 afe3c3fd5392b2f0066930abc5dbd3f4b14a0f13 "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: Sven Geggus <lists@fuchsschwanzdomain.de>
Tested-by: Sven Geggus <lists@fuchsschwanzdomain.de>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/svcauth_unix.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c index a98853dfccdc..621ca7b4a155 100644 --- a/net/sunrpc/svcauth_unix.c +++ b/net/sunrpc/svcauth_unix.c @@ -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); |