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From: Mohammad Rasim <mohammad.rasim96@gmail.com>
To: Kari Argillander <kari.argillander@gmail.com>,
	Konstantin Komarov <almaz.alexandrovich@paragon-software.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: Mon, 4 Oct 2021 23:39:44 +0300	[thread overview]
Message-ID: <c892016c-3e50-739b-38d2-010f02d52019@gmail.com> (raw)
In-Reply-To: <20211003175036.ly4m3lw2bjoippsh@kari-VirtualBox>


On 10/3/21 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]. 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

Yeah unfortunately the problem still exist, moving the buildroot git 
tree from my nvme ext4 partition to my wd ntfs partition still causes 
the panic.

Note that i used the master branch if that matters but it contains the 
same commit


Regards

>> 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
>>

  reply	other threads:[~2021-10-04 20:39 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 [this message]
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

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