Thread (4 messages) 4 messages, 2 authors, 2020-11-30

Re: [PATCH] gpio: mvebu: fix potential user-after-free on probe

From: Uwe Kleine-König <hidden>
Date: 2020-11-30 14:43:59
Also in: linux-gpio, linux-pwm

Hi Baruch,

On Mon, Nov 30, 2020 at 03:55:28PM +0200, Baruch Siach wrote:
On Mon, Nov 30 2020, Uwe Kleine-König wrote:
quoted
On Mon, Nov 30, 2020 at 03:33:23PM +0200, Baruch Siach wrote:
quoted
When mvebu_pwm_probe() fails IRQ domain is not released. Move
mvebu_pwm_probe() before IRQ domain registration.
And now if something with IRQ domain registration fails the pwm stuff
isn't freed?
As far as I can see mvebu_pwm_probe() uses devres exclusively to
allocate resources.
there is no devm magic in pwmchip_add().

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |
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