linux-kernel - Re: [PATCH] um: Call pgtable_pmd_page_dtor() in __pmd_free

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: <20201020015115.GX20115@casper.infradead.org>
Date:   Tue, 20 Oct 2020 02:51:15 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Richard Weinberger <richard@....at>
Cc:     linux-um@...ts.infradead.org, linux-kernel@...r.kernel.org,
        anton.ivanov@...bridgegreys.com
Subject: Re: [PATCH] um: Call pgtable_pmd_page_dtor() in __pmd_free_tlb()

On Mon, Oct 19, 2020 at 11:10:49PM +0200, Richard Weinberger wrote:
> Commit b2b29d6d0119 ("mm: account PMD tables like PTE tables") uncovered
> a bug in uml, we forgot to call the destructor.
> While we are here, give x a sane name.
> 
> Reported-by: Anton Ivanov <anton.ivanov@...bridgegreys.com>
> Co-developed-by: Matthew Wilcox <willy@...radead.org>

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>

> Signed-off-by: Richard Weinberger <richard@....at>

And as a bonus, $ grep PageTables /proc/meminfo 
PageTables:       128720 kB

gets more accurate!