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Sender: Guenter Roeck <groeck7@gmail.com>
Subject: Re: [PATCH 5.10 00/40] 5.10.3-rc1 review
To:     Pavel Machek <pavel@denx.de>,
        Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
        akpm@linux-foundation.org, shuah@kernel.org, patches@kernelci.org,
        lkft-triage@lists.linaro.org, stable@vger.kernel.org
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From:   Guenter Roeck <linux@roeck-us.net>
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Message-ID: <356ddc03-038e-71b6-8134-5b41f090d448@roeck-us.net>
Date:   Mon, 28 Dec 2020 12:41:27 -0800
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On 12/28/20 1:50 AM, Pavel Machek wrote:
> Hi!
>=20
>>>>>>> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-=
5.10.3-rc1.gz
>>>>>>> or in the git tree and branch at:
>>>>>>> =A0=A0=A0=A0=A0=A0=A0=A0git://git.kernel.org/pub/scm/linux/kernel=
/git/stable/
>>>>>>> linu
>>>>>>> x-
>>>>>>> stable-rc.git linux-5.10.y
>>>>>>> and the diffstat can be found below.
>>>>>>>
>>>>>>> thanks,
>>>>>>>
>>>>>>> greg k-h
>>>>>>
>>>>>> hello ,
>>>>>> Compiled and booted 5.10.3-rc1+.
>>>>>>
>>>>>> dmesg -l err gives...
>>>>>> --------------x-------------x------------------->
>>>>>> =A0=A0 43.190922] Bluetooth: hci0: don't support firmware rome
>>>>>> 0x31010100
>>>>>> --------------x---------------x----------------->
>>>>>>
>>>>>> My Bluetooth is Off.
>>>>>
>>>>> Is this a new warning?=A0 Does it show up on 5.10.2?
>>>>>
>>>>>> Tested-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
>>>>>
>>>>> thanks for testing?
>>>>>
>>>>> greg k-h
>>>>
>>>> this does not show up in 5.10.2-rc1+
>>>
>>> Odd.=A0 Can you run 'git bisect' to find the offending commit?
>>>
>>> Does this same error message show up in Linus's git tree?
>=20
>> i will try to do "git bisect" .  i saw this error in linus's  tree.
>=20
> The bug is in -stable, too, so it is probably easiest to do bisect on
> -stable tree. IIRC there's less then few hundred commits, so it should
> be feasible to do bisection by hand if you are not familiar with git
> bisect.
>=20

My wild guess would be commit b260e4a68853 ("Bluetooth: Fix slab-out-of-b=
ounds
read in hci_le_direct_adv_report_evt()"), but I don't see what might be w=
rong
with it unless some BT device sends a bad report which used to be accepte=
d
but is now silently ignored.

Guenter


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