linux-kernel - Re: at25 eeprom driver: NULL pointer dereference (bisected to af40d16042d6 ("Merge v5.15-rc5 into char-misc-next"))

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Message-ID: <17598be4-c5f5-c9ae-ee24-652fc06f36ce@csgroup.eu>
Date:   Thu, 27 Jan 2022 09:32:06 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Ralph Siemsen <ralph.siemsen@...aro.org>,
        Kees Cook <keescook@...omium.org>
CC:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: at25 eeprom driver: NULL pointer dereference (bisected to
 af40d16042d6 ("Merge v5.15-rc5 into char-misc-next"))



Le 26/01/2022 à 20:38, Ralph Siemsen a écrit :
> Hi Christophe,
> 
> On Wed, Jan 26, 2022 at 07:18:42PM +0000, Christophe Leroy wrote:
>> Getting below Oops on boot.
>>
>> v5.16 is OK, v5.17-rc1 has the problem
>>
>> Bisected to af40d16042d6 ("Merge v5.15-rc5 into char-misc-next"), bisect
>> log after the oops dump.
>>
>> I'm a bit puzzled to end up on a merge commit, that commit doesn't show
>> any diff with 'git show' but has a huge list of changes with 'git show
>> --stat'. I must be missing something.
> 
> There is a mistake in the merge commit. The fix is here:
> https://lore.kernel.org/all/20220118182003.3385019-1-keescook@chromium.org/
> 

It fixes the problem, thanks.

FWIW, you can add to that patch:

Tested-by: Christophe Leroy <christophe.leroy@...roup.eu>

Thanks
Christophe