X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fkernel%2Fcred.c;fp=kernel%2Fkernel%2Fcred.c;h=ff8606f77d901d4ed1201d35d35feaa5066821e3;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=71179a09c1d6a3240fd9c1a4ead58d89646da24e;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/kernel/cred.c b/kernel/kernel/cred.c
index 71179a09c..ff8606f77 100644
--- a/kernel/kernel/cred.c
+++ b/kernel/kernel/cred.c
@@ -689,6 +689,8 @@ EXPORT_SYMBOL(set_security_override_from_ctx);
  */
 int set_create_files_as(struct cred *new, struct inode *inode)
 {
+	if (!uid_valid(inode->i_uid) || !gid_valid(inode->i_gid))
+		return -EINVAL;
 	new->fsuid = inode->i_uid;
 	new->fsgid = inode->i_gid;
 	return security_kernel_create_files_as(new, inode);