gpio: Fix kernel stack leak to userspace

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commit 24bd3efc9d upstream.

The GPIO event descriptor was leaking kernel stack to
userspace because we don't zero the variable before
use. Ooops. Fix this.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Linus Walleij 2018-01-22 13:19:28 +01:00 • committed by Greg Kroah-Hartman

parent b98fe1634c

commit 5e5a8be023

1 changed files with 3 additions and 0 deletions

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drivers/gpio/gpiolib.c

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