Re: [PATCH] vmcore: prevent PT_NOTE p_memsz overflow during headerupdate

[Andrew Morton]

On Sat, 1 Feb 2014 01:07:29 +0000 "Pearson, Greg" <greg.pearson@xxxxxx> wrote:

> As far as I know the only consequence of dropping a PT_NOTE entry is 
> that it would not be available in the crash dump for use in debugging. 
> I'm not sure how important this data might be for triage. I'm guessing 
> that in cases where one of these strange PT_NOTE entries shows up with a 
> size that causes an overflow it probably isn't even a real PT_NOTE entry 
> so dropping it won't matter, but that's a guess at this point since I'm 
> still trying to figure out how the bogus entries were created.

Can we detect the crazy-huge notes, skip them and then proceed with
the following sanely-sized ones?

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