Re: Ext3 problems in dual booting machine with SE Linux

From: Valdis . Kletnieks
Date: Fri Jul 23 2004 - 15:59:06 EST


On Fri, 23 Jul 2004 12:01:04 PDT, Steve G said:

> This seems like an open door to mischief. Any removable media can now be used to
> oops a kernel.

However, this has *always* been the case - there's never been a guarantee that
mounting a possibly-maliciously modified filesystem won't trash things. That's
why "force fsck on dirty bit set" was created way back in the Unix Stone Age.

And all you have to do to exploit it is get yourself a trashed filesystem, put it on
removable media, and clear the dirty bit...

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