1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/cred.c b/kernel/cred.c
index 0c0cd8a62285..5f264fb5737d 100644
--- a/kernel/cred.c
+++ b/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);