linux-kernel - RE: [PATCH v2] ACPI: scan: Fix a Hyper-V Linux VM panic caused by buffer overflow

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Date:   Sat, 9 Jan 2021 03:10:05 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Dexuan Cui <decui@...rosoft.com>,
        "rafael@...nel.org" <rafael@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "len.brown@...el.com" <len.brown@...el.com>,
        Michael Kelley <mikelley@...rosoft.com>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        KY Srinivasan <kys@...rosoft.com>,
        "dwaipayanray1@...il.com" <dwaipayanray1@...il.com>
Subject: RE: [PATCH v2] ACPI: scan: Fix a Hyper-V Linux VM panic caused by
 buffer overflow

> From: Dexuan Cui <decui@...rosoft.com>
> Sent: Thursday, January 7, 2021 11:24 PM
> ...
> Linux VM on Hyper-V crashes with the latest mainline:
> ...
> 
> Changes in v2:
>     strlcpy -> kstrdup_const. Thanks Rafael J. Wysocki!
>     Change commit log accordingly.

Hi Rafael, Len, and all,
Can you please take a look at the v2 patch?

The Linux mainline has been broken for several weeks when it
runs as a guest on Hyper-V, so we'd like this to be fixed ASAP,
as more people are being affected, e.g.
https://bugzilla.kernel.org/show_bug.cgi?id=210449

Thanks,
-- Dexuan