linux-kernel - Re: [PATCH v2] HID: fix a crash in hid_debug_events

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Message-ID: <nycvar.YFH.7.76.2311210936160.29220@cbobk.fhfr.pm>
Date:   Tue, 21 Nov 2023 09:36:40 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     Charles Yi <be286@....com>
cc:     benjamin.tissoires@...hat.com, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] HID: fix a crash in hid_debug_events_release

On Tue, 31 Oct 2023, Charles Yi wrote:

> hid_debug_events_release() access released memory by
> hid_device_release(). This is fixed by the patch.
> 
> When hid_debug_events_release() was being called, in most case,
> hid_device_release() finish already, the memory of list->hdev
> freed by hid_device_release(), if list->hdev memory
> reallocate by others, and it's modified, zeroed, then
> list->hdev->debug_list_lock occasioned crash come out.

I have applied the changelog changes proposed by Rahul and applied, 
thanks.

-- 
Jiri Kosina
SUSE Labs