Messages in this thread | | | Date | Wed, 22 May 2002 14:57:46 +1000 | From | Rusty Russell <> | Subject | Re: AUDIT: copy_from_user is a deathtrap. |
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On Tue, 21 May 2002 22:44:42 +0100 (BST) Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > So if you pass bad pointer to read(), why would you expect "number of > > bytes read" return? Its true that kernel can't simply not return > > Because the standard says either you return the errorcode and no data > is transferred or for a partial I/O you return how much was done.
Hmm... I can't find anything like that in SuSv2: can you give a reference?
And we're already violating that for the write() case.
Rusty. -- there are those who do and those who hang on and you don't see too many doers quoting their contemporaries. -- Larry McVoy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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