diff --git a/fs/exec.c b/fs/exec.c
index c56aad307069..cc7ec7b9000b 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -141,8 +141,13 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
 	if (IS_ERR(file))
 		goto out;
 
+	/*
+	 * may_open() has already checked for this, so it should be
+	 * impossible to trip now. But we need to be extra cautious
+	 * and check again at the very end too.
+	 */
 	error = -EACCES;
-	if (!S_ISREG(file_inode(file)->i_mode))
+	if (WARN_ON_ONCE(!S_ISREG(file_inode(file)->i_mode)))
 		goto exit;
 
 	if (path_noexec(&file->f_path))
@@ -908,8 +913,13 @@ static struct file *do_open_execat(int fd, struct filename *name, int flags)
 	if (IS_ERR(file))
 		goto out;
 
+	/*
+	 * may_open() has already checked for this, so it should be
+	 * impossible to trip now. But we need to be extra cautious
+	 * and check again at the very end too.
+	 */
 	err = -EACCES;
-	if (!S_ISREG(file_inode(file)->i_mode))
+	if (WARN_ON_ONCE(!S_ISREG(file_inode(file)->i_mode)))
 		goto exit;
 
 	if (path_noexec(&file->f_path))
diff --git a/fs/namei.c b/fs/namei.c
index fde8fe086c09..9cc3b90abdff 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2849,16 +2849,18 @@ static int may_open(const struct path *path, int acc_mode, int flag)
 	case S_IFLNK:
 		return -ELOOP;
 	case S_IFDIR:
-		if (acc_mode & MAY_WRITE)
+		if (acc_mode & (MAY_WRITE | MAY_EXEC))
 			return -EISDIR;
 		break;
 	case S_IFBLK:
 	case S_IFCHR:
 		if (!may_open_dev(path))
 			return -EACCES;
-		/*FALLTHRU*/
+		fallthrough;
 	case S_IFIFO:
 	case S_IFSOCK:
+		if (acc_mode & MAY_EXEC)
+			return -EACCES;
 		flag &= ~O_TRUNC;
 		break;
 	}
diff --git a/fs/open.c b/fs/open.c
index c80e9f497e9b..9af548fb841b 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -779,12 +779,6 @@ static int do_dentry_open(struct file *f,
 		return 0;
 	}
 
-	/* Any file opened for execve()/uselib() has to be a regular file. */
-	if (unlikely(f->f_flags & FMODE_EXEC && !S_ISREG(inode->i_mode))) {
-		error = -EACCES;
-		goto cleanup_file;
-	}
-
 	if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) {
 		error = get_write_access(inode);
 		if (unlikely(error))