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From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
To: Kari Argillander <kari.argillander@gmail.com>,
	Mohammad Rasim <mohammad.rasim96@gmail.com>
Cc: <ntfs3@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
	<linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH] fs/ntfs3: Check for NULL if ATTR_EA_INFO is incorrect
Date: Wed, 6 Oct 2021 17:51:54 +0300	[thread overview]
Message-ID: <debcf00f-c155-868f-9a49-f5595c550edb@paragon-software.com> (raw)
In-Reply-To: <20211003175036.ly4m3lw2bjoippsh@kari-VirtualBox>



On 03.10.2021 20:50, Kari Argillander wrote:
> On Wed, Sep 29, 2021 at 07:35:43PM +0300, Konstantin Komarov wrote:
>> This can be reason for reported panic.
>> Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")
> 
> I see that you have include this to devel branch but you did not send V2
> [1]. 

From patch thread:
"Is this public panic? If it is then put link here. If you have report
from panic you can put it here also. Patch itself looks correct."

I was thinking, that after adding link / Reported-by the patch is
good to commit.

> I also included Mohammad Rasim to this thread. Maybe they can test
> this patch. Rasim can you test [2] if your problem will be fixed with
> this tree. Or just test this patch if you prefer that way.
> 
> [1]: github.com/Paragon-Software-Group/linux-ntfs3/commit/35afb70dcfe4eb445060dd955e5b67d962869ce5
> [2]: github.com/Paragon-Software-Group/linux-ntfs3/tree/devel
> 
>> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
>> ---
>>  fs/ntfs3/frecord.c | 4 +++-
>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
>> index 9a53f809576d..007602badd90 100644
>> --- a/fs/ntfs3/frecord.c
>> +++ b/fs/ntfs3/frecord.c
>> @@ -3080,7 +3080,9 @@ static bool ni_update_parent(struct ntfs_inode *ni, struct NTFS_DUP_INFO *dup,
>>                         const struct EA_INFO *info;
>>  
>>                         info = resident_data_ex(attr, sizeof(struct EA_INFO));
>> -                       dup->ea_size = info->size_pack;
>> +                       /* If ATTR_EA_INFO exists 'info' can't be NULL. */
>> +                       if (info)
>> +                               dup->ea_size = info->size_pack;
>>                 }
>>         }
>>  
>> -- 
>> 2.33.0
>>

      parent reply	other threads:[~2021-10-06 14:51 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-29 16:35 Konstantin Komarov
2021-09-29 17:44 ` Kari Argillander
2021-10-03 17:50 ` Kari Argillander
2021-10-04 20:39   ` Mohammad Rasim
2021-10-06 14:47     ` Konstantin Komarov
2021-10-06 17:42       ` Mohammad Rasim
2021-10-11 16:55         ` Konstantin Komarov
2021-10-11 20:56           ` Mohammad Rasim
2021-10-06 14:51   ` Konstantin Komarov [this message]

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