Re: [PATCH v2] reiserfs: add check for invalid 1st journal block

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On Mon, 17 May 2021 15:08:18 +0200
Jan Kara <jack@xxxxxxx> wrote:

> On Mon 17-05-21 15:15:45, Pavel Skripkin wrote:
> > syzbot reported divide error in reiserfs.
> > The problem was in incorrect journal 1st block.
> > 
> > Syzbot's reproducer manualy generated wrong superblock
> > with incorrect 1st block. In journal_init() wasn't
> > any checks about this particular case.
> > 
> > For example, if 1st journal block is before superblock
> > 1st block, it can cause zeroing important superblock members
> > in do_journal_end().
> > 
> > Reported-by: syzbot+0ba9909df31c6a36974d@xxxxxxxxxxxxxxxxxxxxxxxxx
> > Signed-off-by: Pavel Skripkin <paskripkin@xxxxxxxxx>
> Thanks! I've added the patch to my tree.
> 								Honza

Hi, Jan!

Is this patched got lost somehow? I did't find it in your tree here

Sorry to bother you, maybe Im missing something :)

With regards,
Pavel Skripkin

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