Subject: Re: 2nd review of fixes to sig_return() and LDT's
To: Wolfgang Solfrank <ws@tools.de>
From: John Brezak <brezak@apollo.hp.com>
List: port-i386
Date: 01/08/1994 23:00:09
> While I haven't looked at your code closely enough, I'm pretty sure there is
> still a bug in there that involves the access of user data from the kernel in
> both sendsig and sigreturn.
> 
> Below are the diffs that correct this flaw. While the sigreturn function
> would do without the modification (as it only reads user data, and that
> it mapped into kernel space anyways), the sendsig code definitely needs
> the modification. Otherwise COW wouldn't work.
> 
I'll have a look after the other round of fixes. This looks like a different
problem thatn the one I'm going after though. Thanx.


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