Date: Thu, 11 Oct 2018 13:30:33 -0700 From: Dave Hansen <dave.hansen@...ux.intel.com> To: Solar Designer <solar@...nwall.com>, oss-security@...ts.openwall.com Subject: Re: Linux kernel: "Meltdown leaks with Global kernel mapping" On 10/09/2018 04:41 AM, Solar Designer wrote: > There are mentions of "r/w kernel text issue" and "unused hole" issue - > is this why "two"? But "r/w kernel text" feels irrelevant to Meltdown. The description says: > The current PTI code leaves the entire area of the kernel binary > between '_text' and '_end' as Global (on non-PCID hardware). > However, that range contains both read-write kernel data, and two > "unused" holes in addition to text. I said two issues because I saw two distinct problems: 1. 'read-write kernel data' 2. '"unused" holes' Does that clear it up?
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