[PATCH 4.9 06/86] gpio: Fix kernel stack leak to userspace

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Linus Walleij commit 24bd3efc9d1efb5f756a7c6f807a36ddb6adc671 upstream. The GPIO event descriptor was leaking kernel stack to userspace because we don't zero the

[PATCH 4.9 06/86] gpio: Fix kernel stack leak to userspace

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Linus Walleij commit 24bd3efc9d1efb5f756a7c6f807a36ddb6adc671 upstream. The GPIO event descriptor was leaking kernel stack to userspace because we don't zero the variable before use. Ooops.