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Message-ID:
<PA4PR02MB8239F8BF23F68BB4B1612227DE302@PA4PR02MB8239.eurprd02.prod.outlook.com>
Date: Sun, 3 May 2026 18:06:38 +0000
From: Paul Ducklin <pducklin@...look.com>
To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com>
Subject: Re: CVE-2026-31431: CopyFail: linux local privilege
scalation
>So one solution would be to get the
>fingers-of-one-hand applications still
>using the interface off it onto user-mode
>software-only and then make it
>kernel-only, closing the door on the entire
>attack surface from user space
Perhaps the mantra, “never break user space” needs rewriting as, “break user space only when something is already broken” (such as when the number of CVEs already associated with that thing exceeds some smallish positive integer N, say, 5).
Duck
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