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-rw-r--r--net/sunrpc/auth_unix.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 4cb70dc6e7ad..e50502d8ceb7 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -129,6 +129,9 @@ unx_match(struct auth_cred *acred, struct rpc_cred *rcred, int flags)
for (i = 0; i < groups ; i++)
if (cred->uc_gids[i] != GROUP_AT(acred->group_info, i))
return 0;
+ if (groups < NFS_NGROUPS &&
+ cred->uc_gids[groups] != NOGROUP)
+ return 0;
return 1;
}