linux-kernel - Re: [PATCH v2] platform/chrome: cros_ec

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Date:   Thu, 08 Dec 2022 02:00:16 +0000
From:   patchwork-bot+chrome-platform@...nel.org
To:     Victor Ding <victording@...omium.org>
Cc:     linux-kernel@...r.kernel.org, chrome-platform@...ts.linux.dev,
        pmalani@...omium.org, groeck@...omium.org, dustin@...ett.net,
        gustavoars@...nel.org, gregkh@...uxfoundation.org,
        sebastian.reichel@...labora.com, dnojiri@...omium.org,
        lee.jones@...aro.org, bleung@...omium.org,
        tinghan.shen@...iatek.com, tzungbi@...nel.org,
        enric.balletbo@...labora.com, heikki.krogerus@...ux.intel.com
Subject: Re: [PATCH v2] platform/chrome: cros_ec_typec: zero out stale pointers

Hello:

This patch was applied to chrome-platform/linux.git (for-kernelci)
by Tzung-Bi Shih <tzungbi@...nel.org>:

On Wed,  7 Dec 2022 09:39:40 +0000 you wrote:
> `cros_typec_get_switch_handles` allocates four pointers when obtaining
> type-c switch handles. These pointers are all freed if failing to obtain
> any of them; therefore, pointers in `port` become stale. The stale
> pointers eventually cause use-after-free or double free in later code
> paths. Zeroing out all pointer fields after freeing to eliminate these
> stale pointers.
> 
> [...]

Here is the summary with links:
  - [v2] platform/chrome: cros_ec_typec: zero out stale pointers
    https://git.kernel.org/chrome-platform/c/9a8aadcf0b45

You are awesome, thank you!
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