Re: [PATCH] jfs: Fix array-index-out-of-bounds in diFree

[Jeongjun Park]

Matthew Wilcox wrote:
> It should be checked earlier than this.  There's this code in
> dbMount().  Why isn't this catching it?

This vulnerability occurs because a very large value can be passed 
to iagp->agstart. So that code doesn't prevent the vulnerability.