Messages in this thread | | | Subject | Re: [PATCH] zerocopy NFS updated | From | (Eric W. Biederman) | Date | 13 Apr 2002 14:34:12 -0600 |
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Andi Kleen <ak@suse.de> writes:
> On Sat, Apr 13, 2002 at 01:19:46PM -0600, Eric W. Biederman wrote: > > Could the garbage from ext3 in writeback mode be considered an > > information leak? I know that is why most places in the kernel > > initialize pages to 0. So you don't accidentally see what another > > user put there. > > Yes it could. But then ext2/ffs have the same problem and so far people were > able to live on with that.
The reason I asked, is the description sounded specific to ext3. Also with ext3 a supported way to shutdown is to just pull the power on the machine. And the filesystem comes back to life without a full fsck.
So if this can happen when all you need is to replay the journal, I have issues with it. If this happens in the case of damaged filesystem I don't.
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