lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <fda48075-783d-1833-5f1c-c10ca2880a56@gmail.com>
Date:   Mon, 14 Nov 2022 17:09:00 +0300
From:   Andrey Ryabinin <ryabinin.a.a@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org
Cc:     "H. Peter Anvin" <hpa@...or.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
        syzbot+ffb4f000dc2872c93f62@...kaller.appspotmail.com,
        syzbot+8cdd16fd5a6c0565e227@...kaller.appspotmail.com
Subject: Re: [PATCH v2 1/5] x86/mm: Recompute physical address for every page
 of per-CPU CEA mapping



On 11/10/22 23:35, Sean Christopherson wrote:
> Recompute the physical address for each per-CPU page in the CPU entry
> area, a recent commit inadvertantly modified cea_map_percpu_pages() such
> that every PTE is mapped to the physical address of the first page.
> 
> Fixes: 9fd429c28073 ("x86/kasan: Map shadow for percpu pages on demand")
> Cc: Andrey Ryabinin <ryabinin.a.a@...il.com>
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Andrey Ryabinin <ryabinin.a.a@...il.com>

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ