Re: [PATCH] pktgen: Remove a dangerous debug print.

[Eric Dumazet]

Le mercredi 27 octobre 2010 Ã 15:28 -0400, Nelson Elhage a Ãcrit :
> How would you feel about limiting the debug print to at most, say, 512 or 1024
> bytes? Even if it's only accessible to root by default, I don't a userspace
> program should be able to accidentally corrupt the kernel stack by writing too
> many bytes to a file in /proc.

Arent /proc writes limited to PAGE_SIZE anyway ?

On x86 at least, you cannot corrupt kernel stack, since its bigger than
PAGE_SIZE.

I agree pktgen code is a bit ugly and needs a cleanup, but who
cares ? :)




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