linux-kernel - Re: [PATCH RESEND 4.4-only] netlink: Allow direct reclaim for fallback allocation

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]

Date:   Thu, 4 May 2017 12:38:14 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Ross Lagerwall <ross.lagerwall@...rix.com>
Cc:     stable@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND 4.4-only] netlink: Allow direct reclaim for
 fallback allocation

On Wed, May 03, 2017 at 09:44:19AM +0100, Ross Lagerwall wrote:
> The backport of d35c99ff77ec ("netlink: do not enter direct reclaim from
> netlink_dump()") to the 4.4 branch (first in 4.4.32) mistakenly removed
> direct claim from the initial large allocation _and_ the fallback
> allocation which means that allocations can spuriously fail.
> Fix the issue by adding back the direct reclaim flag to the fallback
> allocation.
> 
> Fixes: 6d123f1d396b ("netlink: do not enter direct reclaim from netlink_dump()")
> Signed-off-by: Ross Lagerwall <ross.lagerwall@...rix.com>
> ---
> 
> Note that this is only for the 4.4 branch as the regression is only in
> this branch. Consequently, there is no corresponding upstream commit.
> 
> I'm resending this to the linux-stable list since I now understand the
> netdev maintainer only handles backports for the last couple of versions
> of Linux.
> 

Many thanks for this fix, now queued up.

greg k-h