linux-hardening - Re: ACPICA: Replace fake flexible arrays with flexible array members

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Message-ID: <CA+G9fYsPSJiTXouaMUSeoU3JEwym0baq7OGOAMFNWgrgEWOHfA@mail.gmail.com>
Date:   Wed, 1 Feb 2023 05:10:00 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     open list <linux-kernel@...r.kernel.org>, devel@...ica.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org,
        linux-hardening@...r.kernel.org,
        "Rafael J. Wysocki" <rafael@...nel.org>, robert.moore@...el.com,
        lkft-triage@...ts.linaro.org,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Anders Roxell <anders.roxell@...aro.org>
Subject: Re: ACPICA: Replace fake flexible arrays with flexible array members

The qemu-i386 boot failed on Linux next- 20230131 started from
next-20230125. Please refer to boot logs [1], [2] & [3].

The bisection pointed to the following commit,
# first bad commit:
  [5f7e8394a70761036e416c7529c937f309e4680f]
  ACPICA: Replace fake flexible arrays with flexible array members

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

Reverting the above patch fixes the qemu-i386 boot problem.

[1] https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2L4mi3ZZDct0vwmV2tIVY5AtNr0/logs?format=html
[2] https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2L4mi3ZZDct0vwmV2tIVY5AtNr0/logs?format=txt
[3] https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2L4mi32cqUyZvCIhJlV5nR8CuQk

Bisection log:
http://ix.io/4mIP

--
Linaro LKFT
https://lkft.linaro.org